31940814 has 8 divisors (see below), whose sum is σ = 63881640. Its totient is φ = 10646936.

The previous prime is 31940801. The next prime is 31940833. The reversal of 31940814 is 41804913.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

31940814 is an admirable number.

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, 2661729 + ... + 2661740.

It is an arithmetic number, because the mean of its divisors is an integer number (7985205).

Almost surely, 2^31940814 is an apocalyptic number.

31940814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31940814 is a wasteful number, since it uses less digits than its factorization.

31940814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323474.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 31940814 is about 5651.6204755804. The cubic root of 31940814 is about 317.2843564320.

The spelling of 31940814 in words is "thirty-one million, nine hundred forty thousand, eight hundred fourteen".