13312272 has 40 divisors (see below), whose sum is σ = 34551360. Its totient is φ = 4416640.

The previous prime is 13312261. The next prime is 13312283. The reversal of 13312272 is 27221331.

It is an interprime number because it is at equal distance from previous prime (13312261) and next prime (13312283).

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, 12397 + ... + 13427.

It is an arithmetic number, because the mean of its divisors is an integer number (863784).

Almost surely, 2^13312272 is an apocalyptic number.

13312272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13312272 is an abundant number, since it is smaller than the sum of its proper divisors (21239088).

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

13312272 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (13312271) it forms an eRAP, since the sums of their prime factors are consecutive (1310 and 1311).

13312272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311 (or 1305 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 13312272 is about 3648.5986350927. The cubic root of 13312272 is about 237.0012996421.

The spelling of 13312272 in words is "thirteen million, three hundred twelve thousand, two hundred seventy-two".