264090631 has 16 divisors (see below), whose sum is σ = 320495616. Its totient is φ = 212432256.

The previous prime is 264090613. The next prime is 264090637. The reversal of 264090631 is 136090462.

It is a cyclic number.

It is not a de Polignac number, because 264090631 - 2⁷ = 264090503 is a prime.

It is a super-2 number, since 2×264090631² = 139487722763956322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 264090593 and 264090602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264090637) 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 15 ways as a sum of consecutive naturals, for example, 40650 + ... + 46696.

It is an arithmetic number, because the mean of its divisors is an integer number (20030976).

Almost surely, 2^264090631 is an apocalyptic number.

264090631 is a deficient number, since it is larger than the sum of its proper divisors (56404985).

264090631 is a wasteful number, since it uses less digits than its factorization.

264090631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 264090631 is about 16250.8655461794. The cubic root of 264090631 is about 641.5802672073.

The spelling of 264090631 in words is "two hundred sixty-four million, ninety thousand, six hundred thirty-one".