490570939 has 4 divisors (see below), whose sum is σ = 506395840. Its totient is φ = 474746040.

The previous prime is 490570909. The next prime is 490570943. The reversal of 490570939 is 939075094.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 490570939 - 2⁵ = 490570907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490570909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7912404 + ... + 7912465.

It is an arithmetic number, because the mean of its divisors is an integer number (126598960).

Almost surely, 2^490570939 is an apocalyptic number.

490570939 is a deficient number, since it is larger than the sum of its proper divisors (15824901).

490570939 is a wasteful number, since it uses less digits than its factorization.

490570939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15824900.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 490570939 is about 22148.8360642269. The cubic root of 490570939 is about 788.6795969084.

The spelling of 490570939 in words is "four hundred ninety million, five hundred seventy thousand, nine hundred thirty-nine".