It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 504 is not a prime number.
For example, 490 504 can be divided by 2: 490 504 / 2 = 245 252.
For 490 504 to be a prime number, it would have been required that 490 504 has only two divisors, i.e., itself and 1.
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490 504 is an even number, because it is evenly divisible by 2: 490 504 / 2 = 245 252.
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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 490 504 is about 700.360.
Thus, the square root of 490 504 is not an integer, and therefore 490 504 is not a square number.
The square of a number (here 490 504) is the result of the product of this number (490 504) by itself (i.e., 490 504 × 490 504); the square of 490 504 is sometimes called "raising 490 504 to the power 2", or "490 504 squared".
The square of 490 504 is 240 594 174 016 because 490 504 × 490 504 = 490 5042 = 240 594 174 016.
As a consequence, 490 504 is the square root of 240 594 174 016.
The multiples of 490 504 are all integers evenly divisible by 490 504, that is all numbers such that the remainder of the division by 490 504 is zero. There are infinitely many multiples of 490 504. The smallest multiples of 490 504 are: