426928931 has 32 divisors (see below), whose sum is σ = 521472000. Its totient is φ = 344217600.

The previous prime is 426928927. The next prime is 426928937. The reversal of 426928931 is 139829624.

It is a cyclic number.

It is not a de Polignac number, because 426928931 - 2² = 426928927 is a prime.

It is a super-2 number, since 2×426928931² = 364536624249605522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426928937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 855320 + ... + 855818.

It is an arithmetic number, because the mean of its divisors is an integer number (16296000).

Almost surely, 2^426928931 is an apocalyptic number.

426928931 is a deficient number, since it is larger than the sum of its proper divisors (94543069).

426928931 is a wasteful number, since it uses less digits than its factorization.

426928931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747.

The product of its digits is 186624, while the sum is 44.

The square root of 426928931 is about 20662.2586132301. The cubic root of 426928931 is about 752.9830416274.

The spelling of 426928931 in words is "four hundred twenty-six million, nine hundred twenty-eight thousand, nine hundred thirty-one".