13630544 has 20 divisors (see below), whose sum is σ = 26495700. Its totient is φ = 6792960.

The previous prime is 13630469. The next prime is 13630553. The reversal of 13630544 is 44503631.

It can be written as a sum of positive squares in 2 ways, for example, as 5290000 + 8340544 = 2300^2 + 2888^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4364 + ... + 6804.

It is an arithmetic number, because the mean of its divisors is an integer number (1324785).

Almost surely, 2^13630544 is an apocalyptic number.

It is an amenable number.

13630544 is a deficient number, since it is larger than the sum of its proper divisors (12865156).

13630544 is a wasteful number, since it uses less digits than its factorization.

13630544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 13630544 is about 3691.9566628009. The cubic root of 13630544 is about 238.8751996322.

The spelling of 13630544 in words is "thirteen million, six hundred thirty thousand, five hundred forty-four".