13272864 has 48 divisors (see below), whose sum is σ = 38011680. Its totient is φ = 4021760.

The previous prime is 13272859. The next prime is 13272871. The reversal of 13272864 is 46827231.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 16.

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, 5229 + ... + 7340.

It is an arithmetic number, because the mean of its divisors is an integer number (791910).

Almost surely, 2^13272864 is an apocalyptic number.

It is an amenable number.

13272864 is an abundant number, since it is smaller than the sum of its proper divisors (24738816).

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

13272864 is a wasteful number, since it uses less digits than its factorization.

13272864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12593 (or 12585 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 13272864 is about 3643.1942028939. The cubic root of 13272864 is about 236.7672054049.

The spelling of 13272864 in words is "thirteen million, two hundred seventy-two thousand, eight hundred sixty-four".