31942894 has 16 divisors (see below), whose sum is σ = 49840560. Its totient is φ = 15341760.

The previous prime is 31942879. The next prime is 31942907. The reversal of 31942894 is 49824913.

It is a super-4 number, since 4×31942894⁴ (a number of 31 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2202 + ... + 8290.

It is an arithmetic number, because the mean of its divisors is an integer number (3115035).

Almost surely, 2^31942894 is an apocalyptic number.

31942894 is a deficient number, since it is larger than the sum of its proper divisors (17897666).

31942894 is a wasteful number, since it uses less digits than its factorization.

31942894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6195.

The product of its digits is 62208, while the sum is 40.

The square root of 31942894 is about 5651.8044906030. The cubic root of 31942894 is about 317.2912435153.

The spelling of 31942894 in words is "thirty-one million, nine hundred forty-two thousand, eight hundred ninety-four".