12649944 has 16 divisors (see below), whose sum is σ = 31624920. Its totient is φ = 4216640.

The previous prime is 12649943. The next prime is 12649957. The reversal of 12649944 is 44994621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12649943) 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, 263517 + ... + 263564.

Almost surely, 2^12649944 is an apocalyptic number.

It is an amenable number.

12649944 is an abundant number, since it is smaller than the sum of its proper divisors (18974976).

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

12649944 is a wasteful number, since it uses less digits than its factorization.

12649944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527090 (or 527086 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 12649944 is about 3556.6759762452. The cubic root of 12649944 is about 233.0037269078.

The spelling of 12649944 in words is "twelve million, six hundred forty-nine thousand, nine hundred forty-four".