31426996 has 12 divisors (see below), whose sum is σ = 55036548. Its totient is φ = 15702272.

The previous prime is 31426987. The next prime is 31427003. The reversal of 31426996 is 69962413.

It can be written as a sum of positive squares in 2 ways, for example, as 12816400 + 18610596 = 3580^2 + 4314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9150 + ... + 12106.

It is an arithmetic number, because the mean of its divisors is an integer number (4586379).

Almost surely, 2^31426996 is an apocalyptic number.

It is an amenable number.

31426996 is a deficient number, since it is larger than the sum of its proper divisors (23609552).

31426996 is a wasteful number, since it uses less digits than its factorization.

31426996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618 (or 5616 counting only the distinct ones).

The product of its digits is 69984, while the sum is 40.

The square root of 31426996 is about 5605.9785943223. The cubic root of 31426996 is about 315.5738125793.

The spelling of 31426996 in words is "thirty-one million, four hundred twenty-six thousand, nine hundred ninety-six".