It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 682 is not a prime number.
For example, 490 682 can be divided by 2: 490 682 / 2 = 245 341.
For 490 682 to be a prime number, it would have been required that 490 682 has only two divisors, i.e., itself and 1.
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490 682 is an even number, because it is evenly divisible by 2: 490 682 / 2 = 245 341.
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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 490 682 is about 700.487.
Thus, the square root of 490 682 is not an integer, and therefore 490 682 is not a square number.
The square of a number (here 490 682) is the result of the product of this number (490 682) by itself (i.e., 490 682 × 490 682); the square of 490 682 is sometimes called "raising 490 682 to the power 2", or "490 682 squared".
The square of 490 682 is 240 768 825 124 because 490 682 × 490 682 = 490 6822 = 240 768 825 124.
As a consequence, 490 682 is the square root of 240 768 825 124.
The multiples of 490 682 are all integers evenly divisible by 490 682, that is all numbers such that the remainder of the division by 490 682 is zero. There are infinitely many multiples of 490 682. The smallest multiples of 490 682 are: