12944336 has 20 divisors (see below), whose sum is σ = 25244292. Its totient is φ = 6429696.

The previous prime is 12944311. The next prime is 12944341. The reversal of 12944336 is 63344921.

It can be written as a sum of positive squares in 2 ways, for example, as 5953600 + 6990736 = 2440^2 + 2644^2 .

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, 65 + ... + 5088.

Almost surely, 2^12944336 is an apocalyptic number.

12944336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12944336 is a deficient number, since it is larger than the sum of its proper divisors (12299956).

12944336 is a wasteful number, since it uses less digits than its factorization.

12944336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318 (or 5312 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 12944336 is about 3597.8237866799. The cubic root of 12944336 is about 234.7973868513.

The spelling of 12944336 in words is "twelve million, nine hundred forty-four thousand, three hundred thirty-six".