31044012 has 12 divisors (see below), whose sum is σ = 72436056. Its totient is φ = 10348000.

The previous prime is 31043993. The next prime is 31044019. The reversal of 31044012 is 21044013.

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

It is a super-2 number, since 2×31044012² = 1927461362112288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31043982 and 31044000.

It is not an unprimeable number, because it can be changed into a prime (31044019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1293489 + ... + 1293512.

It is an arithmetic number, because the mean of its divisors is an integer number (6036338).

Almost surely, 2^31044012 is an apocalyptic number.

It is an amenable number.

31044012 is an abundant number, since it is smaller than the sum of its proper divisors (41392044).

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

31044012 is a wasteful number, since it uses less digits than its factorization.

31044012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587008 (or 2587006 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 31044012 is about 5571.7153552564. The cubic root of 31044012 is about 314.2866599342.

Adding to 31044012 its reverse (21044013), we get a palindrome (52088025).

Subtracting from 31044012 its reverse (21044013), we obtain a palindrome (9999999).

The spelling of 31044012 in words is "thirty-one million, forty-four thousand, twelve".