It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 240 488 is not a prime number.
For example, 240 488 can be divided by 2: 240 488 / 2 = 120 244.
For 240 488 to be a prime number, it would have been required that 240 488 has only two divisors, i.e., itself and 1.
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240 488 is an even number, because it is evenly divisible by 2: 240 488 / 2 = 120 244.
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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 240 488 is about 490.396.
Thus, the square root of 240 488 is not an integer, and therefore 240 488 is not a square number.
The square of a number (here 240 488) is the result of the product of this number (240 488) by itself (i.e., 240 488 × 240 488); the square of 240 488 is sometimes called "raising 240 488 to the power 2", or "240 488 squared".
The square of 240 488 is 57 834 478 144 because 240 488 × 240 488 = 240 4882 = 57 834 478 144.
As a consequence, 240 488 is the square root of 57 834 478 144.
The multiples of 240 488 are all integers evenly divisible by 240 488, that is all numbers such that the remainder of the division by 240 488 is zero. There are infinitely many multiples of 240 488. The smallest multiples of 240 488 are: