13312944 has 40 divisors (see below), whose sum is σ = 38214320. Its totient is φ = 4437504.

The previous prime is 13312931. The next prime is 13312963. The reversal of 13312944 is 44921331.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14977 + ... + 15840.

It is an arithmetic number, because the mean of its divisors is an integer number (955358).

Almost surely, 2^13312944 is an apocalyptic number.

It is an amenable number.

13312944 is an abundant number, since it is smaller than the sum of its proper divisors (24901376).

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

13312944 is a wasteful number, since it uses less digits than its factorization.

13312944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30834 (or 30822 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 13312944 is about 3648.6907240817. The cubic root of 13312944 is about 237.0052874962.

The spelling of 13312944 in words is "thirteen million, three hundred twelve thousand, nine hundred forty-four".