13317372 has 42 divisors (see below), whose sum is σ = 34949768. Its totient is φ = 4438152.

The previous prime is 13317371. The next prime is 13317377. The reversal of 13317372 is 27371331.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13317371) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 633 + ... + 5199.

Almost surely, 2^13317372 is an apocalyptic number.

13317372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13317372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17474884).

13317372 is an abundant number, since it is smaller than the sum of its proper divisors (21632396).

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

13317372 is an equidigital number, since it uses as much as digits as its factorization.

13317372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589 (or 4572 counting only the distinct ones).

The product of its digits is 2646, while the sum is 27.

The square root of 13317372 is about 3649.2974666366. The cubic root of 13317372 is about 237.0315612511.

It can be divided in two parts, 13317 and 372, that added together give a square (13689 = 117²).

The spelling of 13317372 in words is "thirteen million, three hundred seventeen thousand, three hundred seventy-two".