12644732 has 6 divisors (see below), whose sum is σ = 22128288. Its totient is φ = 6322364.

The previous prime is 12644707. The next prime is 12644741. The reversal of 12644732 is 23744621.

12644732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12644695 and 12644704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580588 + ... + 1580595.

It is an arithmetic number, because the mean of its divisors is an integer number (3688048).

Almost surely, 2^12644732 is an apocalyptic number.

It is an amenable number.

12644732 is a deficient number, since it is larger than the sum of its proper divisors (9483556).

12644732 is a wasteful number, since it uses less digits than its factorization.

12644732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161187 (or 3161185 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 12644732 is about 3555.9431941469. The cubic root of 12644732 is about 232.9717219637.

The spelling of 12644732 in words is "twelve million, six hundred forty-four thousand, seven hundred thirty-two".