13388172 has 36 divisors (see below), whose sum is σ = 36340920. Its totient is φ = 3825024.

The previous prime is 13388119. The next prime is 13388189. The reversal of 13388172 is 27188331.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10797 + ... + 11972.

It is an arithmetic number, because the mean of its divisors is an integer number (1009470).

Almost surely, 2^13388172 is an apocalyptic number.

13388172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13388172 is an abundant number, since it is smaller than the sum of its proper divisors (22952748).

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

13388172 is a wasteful number, since it uses less digits than its factorization.

13388172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22790 (or 22781 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 13388172 is about 3658.9851051897. The cubic root of 13388172 is about 237.4508677683.

The spelling of 13388172 in words is "thirteen million, three hundred eighty-eight thousand, one hundred seventy-two".