13389624 has 40 divisors (see below), whose sum is σ = 37505160. Its totient is φ = 4462992.

The previous prime is 13389617. The next prime is 13389647. The reversal of 13389624 is 42698331.

13389624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13389624² = 358564061722752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

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, 9684 + ... + 10979.

It is an arithmetic number, because the mean of its divisors is an integer number (937629).

Almost surely, 2^13389624 is an apocalyptic number.

It is an amenable number.

13389624 is an abundant number, since it is smaller than the sum of its proper divisors (24115536).

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

13389624 is a wasteful number, since it uses less digits than its factorization.

13389624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20681 (or 20668 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13389624 is about 3659.1835154854. The cubic root of 13389624 is about 237.4594516187.

The spelling of 13389624 in words is "thirteen million, three hundred eighty-nine thousand, six hundred twenty-four".