It is possible to find out using mathematical methods whether a given integer is a prime number or not.
No, 490 940 309 is not a prime number.
For example, 490 940 309 can be divided by 37: 490 940 309 / 37 = 13 268 657.
For 490 940 309 to be a prime number, it would have been required that 490 940 309 has only two divisors, i.e., itself and 1.
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490 940 309 is an odd number, because it is not evenly divisible by 2.
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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 490 940 309 is about 22 157.173.
Thus, the square root of 490 940 309 is not an integer, and therefore 490 940 309 is not a square number.
The square of a number (here 490 940 309) is the result of the product of this number (490 940 309) by itself (i.e., 490 940 309 × 490 940 309); the square of 490 940 309 is sometimes called "raising 490 940 309 to the power 2", or "490 940 309 squared".
The square of 490 940 309 is 241 022 387 001 015 488 because 490 940 309 × 490 940 309 = 490 940 3092 = 241 022 387 001 015 488.
As a consequence, 490 940 309 is the square root of 241 022 387 001 015 488.
490 940 309 is a number with 9 digits.
The multiples of 490 940 309 are all integers evenly divisible by 490 940 309, that is all numbers such that the remainder of the division by 490 940 309 is zero. There are infinitely many multiples of 490 940 309. The smallest multiples of 490 940 309 are: