13889136 has 40 divisors (see below), whose sum is σ = 37993104. Its totient is φ = 4357120.

The previous prime is 13889089. The next prime is 13889143. The reversal of 13889136 is 63198831.

It is a junction number, because it is equal to n+sod(n) for n = 13889094 and 13889103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7695 + ... + 9326.

Almost surely, 2^13889136 is an apocalyptic number.

13889136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13889136 is an abundant number, since it is smaller than the sum of its proper divisors (24103968).

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

13889136 is a wasteful number, since it uses less digits than its factorization.

13889136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17049 (or 17043 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 13889136 is about 3726.8131157867. The cubic root of 13889136 is about 240.3763539597.

The spelling of 13889136 in words is "thirteen million, eight hundred eighty-nine thousand, one hundred thirty-six".