It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 498 416 is not a prime number.
For example, 498 416 can be divided by 2: 498 416 / 2 = 249 208.
For 498 416 to be a prime number, it would have been required that 498 416 has only two divisors, i.e., itself and 1.
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498 416 is an even number, because it is evenly divisible by 2: 498 416 / 2 = 249 208.
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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 498 416 is about 705.986.
Thus, the square root of 498 416 is not an integer, and therefore 498 416 is not a square number.
The square of a number (here 498 416) is the result of the product of this number (498 416) by itself (i.e., 498 416 × 498 416); the square of 498 416 is sometimes called "raising 498 416 to the power 2", or "498 416 squared".
The square of 498 416 is 248 418 509 056 because 498 416 × 498 416 = 498 4162 = 248 418 509 056.
As a consequence, 498 416 is the square root of 248 418 509 056.
The multiples of 498 416 are all integers evenly divisible by 498 416, that is all numbers such that the remainder of the division by 498 416 is zero. There are infinitely many multiples of 498 416. The smallest multiples of 498 416 are: