13912644 has 24 divisors (see below), whose sum is σ = 32532640. Its totient is φ = 4627584.

The previous prime is 13912643. The next prime is 13912669. The reversal of 13912644 is 44621931.

It is not an unprimeable number, because it can be changed into a prime (13912643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6492 + ... + 8364.

Almost surely, 2^13912644 is an apocalyptic number.

It is an amenable number.

13912644 is an abundant number, since it is smaller than the sum of its proper divisors (18619996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13912644 is a wasteful number, since it uses less digits than its factorization.

13912644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499 (or 2497 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 13912644 is about 3729.9656834883. The cubic root of 13912644 is about 240.5118935225.

The spelling of 13912644 in words is "thirteen million, nine hundred twelve thousand, six hundred forty-four".