13725644 has 6 divisors (see below), whose sum is σ = 24019884. Its totient is φ = 6862820.

The previous prime is 13725637. The next prime is 13725659. The reversal of 13725644 is 44652731.

It is a self number, because there is not a number n which added to its sum of digits gives 13725644.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715702 + ... + 1715709.

It is an arithmetic number, because the mean of its divisors is an integer number (4003314).

Almost surely, 2^13725644 is an apocalyptic number.

It is an amenable number.

13725644 is a deficient number, since it is larger than the sum of its proper divisors (10294240).

13725644 is a wasteful number, since it uses less digits than its factorization.

13725644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431415 (or 3431413 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 13725644 is about 3704.8136255418. The cubic root of 13725644 is about 239.4294549196.

The spelling of 13725644 in words is "thirteen million, seven hundred twenty-five thousand, six hundred forty-four".