It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 498 018 is not a prime number.
For example, 498 018 can be divided by 2: 498 018 / 2 = 249 009.
For 498 018 to be a prime number, it would have been required that 498 018 has only two divisors, i.e., itself and 1.
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498 018 is an even number, because it is evenly divisible by 2: 498 018 / 2 = 249 009.
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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 498 018 is about 705.704.
Thus, the square root of 498 018 is not an integer, and therefore 498 018 is not a square number.
The square of a number (here 498 018) is the result of the product of this number (498 018) by itself (i.e., 498 018 × 498 018); the square of 498 018 is sometimes called "raising 498 018 to the power 2", or "498 018 squared".
The square of 498 018 is 248 021 928 324 because 498 018 × 498 018 = 498 0182 = 248 021 928 324.
As a consequence, 498 018 is the square root of 248 021 928 324.
The multiples of 498 018 are all integers evenly divisible by 498 018, that is all numbers such that the remainder of the division by 498 018 is zero. There are infinitely many multiples of 498 018. The smallest multiples of 498 018 are: