12911944 has 16 divisors (see below), whose sum is σ = 25484400. Its totient is φ = 6116112.

The previous prime is 12911933. The next prime is 12911957. The reversal of 12911944 is 44911921.

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, 42322 + ... + 42625.

It is an arithmetic number, because the mean of its divisors is an integer number (1592775).

Almost surely, 2^12911944 is an apocalyptic number.

It is an amenable number.

12911944 is a deficient number, since it is larger than the sum of its proper divisors (12572456).

12911944 is a wasteful number, since it uses less digits than its factorization.

12911944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84972 (or 84968 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 12911944 is about 3593.3193568065. The cubic root of 12911944 is about 234.6013703631.

The spelling of 12911944 in words is "twelve million, nine hundred eleven thousand, nine hundred forty-four".