10390731 has 16 divisors (see below), whose sum is σ = 15023904. Its totient is φ = 6349824.

The previous prime is 10390727. The next prime is 10390741. The reversal of 10390731 is 13709301.

It is not a de Polignac number, because 10390731 - 2² = 10390727 is a prime.

It is a super-2 number, since 2×10390731² = 215934581428722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10390741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5275 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (938994).

Almost surely, 2^10390731 is an apocalyptic number.

10390731 is a deficient number, since it is larger than the sum of its proper divisors (4633173).

10390731 is a wasteful number, since it uses less digits than its factorization.

10390731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 10390731 is about 3223.4656815297. The cubic root of 10390731 is about 218.2137104106.

The spelling of 10390731 in words is "ten million, three hundred ninety thousand, seven hundred thirty-one".