12644752 has 20 divisors (see below), whose sum is σ = 25070320. Its totient is φ = 6175008.

The previous prime is 12644741. The next prime is 12644759. The reversal of 12644752 is 25744621.

It is not an unprimeable number, because it can be changed into a prime (12644759) 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, 8502 + ... + 9877.

It is an arithmetic number, because the mean of its divisors is an integer number (1253516).

Almost surely, 2^12644752 is an apocalyptic number.

It is an amenable number.

12644752 is a deficient number, since it is larger than the sum of its proper divisors (12425568).

12644752 is a wasteful number, since it uses less digits than its factorization.

12644752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18430 (or 18424 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 12644752 is about 3555.9460063392. The cubic root of 12644752 is about 232.9718447931.

The spelling of 12644752 in words is "twelve million, six hundred forty-four thousand, seven hundred fifty-two".