13056638 has 20 divisors (see below), whose sum is σ = 22856160. Its totient is φ = 5593644.

The previous prime is 13056619. The next prime is 13056653. The reversal of 13056638 is 83665031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3443 + ... + 6161.

It is an arithmetic number, because the mean of its divisors is an integer number (1142808).

Almost surely, 2^13056638 is an apocalyptic number.

13056638 is a deficient number, since it is larger than the sum of its proper divisors (9799522).

13056638 is an frugal number, since it uses more digits than its factorization.

13056638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13056638 is about 3613.3970166590. The cubic root of 13056638 is about 235.4744481483.

The spelling of 13056638 in words is "thirteen million, fifty-six thousand, six hundred thirty-eight".