31970292 has 12 divisors (see below), whose sum is σ = 74597376. Its totient is φ = 10656760.

The previous prime is 31970261. The next prime is 31970321. The reversal of 31970292 is 29207913.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1332084 + ... + 1332107.

It is an arithmetic number, because the mean of its divisors is an integer number (6216448).

Almost surely, 2^31970292 is an apocalyptic number.

It is an amenable number.

31970292 is an abundant number, since it is smaller than the sum of its proper divisors (42627084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31970292 is a wasteful number, since it uses less digits than its factorization.

31970292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664198 (or 2664196 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 31970292 is about 5654.2277987361. The cubic root of 31970292 is about 317.3819330779.

The spelling of 31970292 in words is "thirty-one million, nine hundred seventy thousand, two hundred ninety-two".