490940631 has 6 divisors (see below), whose sum is σ = 709136480. Its totient is φ = 327293748.

The previous prime is 490940621. The next prime is 490940657. The reversal of 490940631 is 136049094.

It is not a de Polignac number, because 490940631 - 2¹¹ = 490938583 is a prime.

It is a super-2 number, since 2×490940631² = 482045406333356322, 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 (490940621) 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, 27274471 + ... + 27274488.

Almost surely, 2^490940631 is an apocalyptic number.

490940631 is a deficient number, since it is larger than the sum of its proper divisors (218195849).

490940631 is a wasteful number, since it uses less digits than its factorization.

490940631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54548965 (or 54548962 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 490940631 is about 22157.1801229308. The cubic root of 490940631 is about 788.8776622669.

The spelling of 490940631 in words is "four hundred ninety million, nine hundred forty thousand, six hundred thirty-one".