13231372 has 108 divisors (see below), whose sum is σ = 32836104. Its totient is φ = 4596480.

The previous prime is 13231369. The next prime is 13231373. The reversal of 13231372 is 27313231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

Its product of digits (756) is a multiple of the sum of its prime factors (84).

It is not an unprimeable number, because it can be changed into a prime (13231373) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 696379 + ... + 696397.

It is an arithmetic number, because the mean of its divisors is an integer number (304038).

Almost surely, 2^13231372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16418052).

13231372 is an abundant number, since it is smaller than the sum of its proper divisors (19604732).

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

13231372 is a wasteful number, since it uses less digits than its factorization.

13231372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 56 counting only the distinct ones).

The product of its digits is 756, while the sum is 22.

The square root of 13231372 is about 3637.4952920932. The cubic root of 13231372 is about 236.5202303359.

The spelling of 13231372 in words is "thirteen million, two hundred thirty-one thousand, three hundred seventy-two".