31044393 has 24 divisors (see below), whose sum is σ = 46425600. Its totient is φ = 19977984.

The previous prime is 31044371. The next prime is 31044401. The reversal of 31044393 is 39344013.

It is not a de Polignac number, because 31044393 - 2⁸ = 31044137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31044313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32953 + ... + 33881.

It is an arithmetic number, because the mean of its divisors is an integer number (1934400).

Almost surely, 2^31044393 is an apocalyptic number.

It is an amenable number.

31044393 is a deficient number, since it is larger than the sum of its proper divisors (15381207).

31044393 is a wasteful number, since it uses less digits than its factorization.

31044393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 31044393 is about 5571.7495456993. The cubic root of 31044393 is about 314.2879456650.

The spelling of 31044393 in words is "thirty-one million, forty-four thousand, three hundred ninety-three".