It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 400 528 014 is not a prime number.
For example, 400 528 014 can be divided by 2: 400 528 014 / 2 = 200 264 007.
For 400 528 014 to be a prime number, it would have been required that 400 528 014 has only two divisors, i.e., itself and 1.
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400 528 014 is an even number, because it is evenly divisible by 2: 400 528 014 / 2 = 200 264 007.
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A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 400 528 014 is about 20 013.196.
Thus, the square root of 400 528 014 is not an integer, and therefore 400 528 014 is not a square number.
The square of a number (here 400 528 014) is the result of the product of this number (400 528 014) by itself (i.e., 400 528 014 × 400 528 014); the square of 400 528 014 is sometimes called "raising 400 528 014 to the power 2", or "400 528 014 squared".
The square of 400 528 014 is 160 422 689 998 784 192 because 400 528 014 × 400 528 014 = 400 528 0142 = 160 422 689 998 784 192.
As a consequence, 400 528 014 is the square root of 160 422 689 998 784 192.
400 528 014 is a number with 9 digits.
The multiples of 400 528 014 are all integers evenly divisible by 400 528 014, that is all numbers such that the remainder of the division by 400 528 014 is zero. There are infinitely many multiples of 400 528 014. The smallest multiples of 400 528 014 are: