13232320 has 28 divisors (see below), whose sum is σ = 31510224. Its totient is φ = 5292800.

The previous prime is 13232311. The next prime is 13232327. The reversal of 13232320 is 2323231.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 13232294 and 13232303.

It is not an unprimeable number, because it can be changed into a prime (13232327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20356 + ... + 20995.

Almost surely, 2^13232320 is an apocalyptic number.

13232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13232320 is an abundant number, since it is smaller than the sum of its proper divisors (18277904).

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

13232320 is an equidigital number, since it uses as much as digits as its factorization.

13232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41368 (or 41358 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13232320 is about 3637.6255992062. The cubic root of 13232320 is about 236.5258789268.

Adding to 13232320 its reverse (2323231), we get a palindrome (15555551).

The spelling of 13232320 in words is "thirteen million, two hundred thirty-two thousand, three hundred twenty".