490902831 has 6 divisors (see below), whose sum is σ = 709081880. Its totient is φ = 327268548.

The previous prime is 490902821. The next prime is 490902871. The reversal of 490902831 is 138209094.

490902831 is a `hidden beast` number, since 490 + 90 + 2 + 83 + 1 = 666.

It is not a de Polignac number, because 490902831 - 2⁶ = 490902767 is a prime.

It is a super-2 number, since 2×490902831² = 481971178967629122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490902821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27272371 + ... + 27272388.

Almost surely, 2^490902831 is an apocalyptic number.

490902831 is a deficient number, since it is larger than the sum of its proper divisors (218179049).

490902831 is a wasteful number, since it uses less digits than its factorization.

490902831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54544765 (or 54544762 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 490902831 is about 22156.3271098799. The cubic root of 490902831 is about 788.8574151880.

The spelling of 490902831 in words is "four hundred ninety million, nine hundred two thousand, eight hundred thirty-one".