It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 438 013 is not a prime number.
For example, 438 013 can be divided by 179: 438 013 / 179 = 2 447.
For 438 013 to be a prime number, it would have been required that 438 013 has only two divisors, i.e., itself and 1.
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438 013 is an odd number, because it is not evenly divisible by 2.
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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 438 013 is about 661.826.
Thus, the square root of 438 013 is not an integer, and therefore 438 013 is not a square number.
The square of a number (here 438 013) is the result of the product of this number (438 013) by itself (i.e., 438 013 × 438 013); the square of 438 013 is sometimes called "raising 438 013 to the power 2", or "438 013 squared".
The square of 438 013 is 191 855 388 169 because 438 013 × 438 013 = 438 0132 = 191 855 388 169.
As a consequence, 438 013 is the square root of 191 855 388 169.
The multiples of 438 013 are all integers evenly divisible by 438 013, that is all numbers such that the remainder of the division by 438 013 is zero. There are infinitely many multiples of 438 013. The smallest multiples of 438 013 are: