12644524 has 6 divisors (see below), whose sum is σ = 22127924. Its totient is φ = 6322260.

The previous prime is 12644483. The next prime is 12644561. The reversal of 12644524 is 42544621.

It is a junction number, because it is equal to n+sod(n) for n = 12644492 and 12644501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580562 + ... + 1580569.

Almost surely, 2^12644524 is an apocalyptic number.

It is an amenable number.

12644524 is a deficient number, since it is larger than the sum of its proper divisors (9483400).

12644524 is a wasteful number, since it uses less digits than its factorization.

12644524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3161135 (or 3161133 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 12644524 is about 3555.9139472153. The cubic root of 12644524 is about 232.9704445310.

The spelling of 12644524 in words is "twelve million, six hundred forty-four thousand, five hundred twenty-four".