13888812 has 24 divisors (see below), whose sum is σ = 37037056. Its totient is φ = 3968208.

The previous prime is 13888799. The next prime is 13888817. The reversal of 13888812 is 21888831.

It is not an unprimeable number, because it can be changed into a prime (13888817) 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, 82588 + ... + 82755.

Almost surely, 2^13888812 is an apocalyptic number.

13888812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13888812 is an abundant number, since it is smaller than the sum of its proper divisors (23148244).

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

13888812 is a wasteful number, since it uses less digits than its factorization.

13888812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165357 (or 165355 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The square root of 13888812 is about 3726.7696467584. The cubic root of 13888812 is about 240.3744848119.

The spelling of 13888812 in words is "thirteen million, eight hundred eighty-eight thousand, eight hundred twelve".