13333872 has 20 divisors (see below), whose sum is σ = 34445960. Its totient is φ = 4444608.

The previous prime is 13333849. The next prime is 13333883. The reversal of 13333872 is 27833331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138847 + ... + 138942.

It is an arithmetic number, because the mean of its divisors is an integer number (1722298).

Almost surely, 2^13333872 is an apocalyptic number.

13333872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13333872 is an abundant number, since it is smaller than the sum of its proper divisors (21112088).

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

13333872 is a wasteful number, since it uses less digits than its factorization.

13333872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277800 (or 277794 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 13333872 is about 3651.5574759272. The cubic root of 13333872 is about 237.1294135561.

The spelling of 13333872 in words is "thirteen million, three hundred thirty-three thousand, eight hundred seventy-two".