13323320 has 32 divisors (see below), whose sum is σ = 30088800. Its totient is φ = 5309568.

The previous prime is 13323287. The next prime is 13323337. The reversal of 13323320 is 2332331.

It is a congruent number.

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, 15461 + ... + 16299.

It is an arithmetic number, because the mean of its divisors is an integer number (940275).

Almost surely, 2^13323320 is an apocalyptic number.

13323320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13323320 is an abundant number, since it is smaller than the sum of its proper divisors (16765480).

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

13323320 is a wasteful number, since it uses less digits than its factorization.

13323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 13323320 is about 3650.1123270387. The cubic root of 13323320 is about 237.0668448361.

Adding to 13323320 its reverse (2332331), we get a palindrome (15655651).

The spelling of 13323320 in words is "thirteen million, three hundred twenty-three thousand, three hundred twenty".