13331856 has 20 divisors (see below), whose sum is σ = 34440752. Its totient is φ = 4443936.

The previous prime is 13331839. The next prime is 13331867. The reversal of 13331856 is 65813331.

13331856 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138826 + ... + 138921.

Almost surely, 2^13331856 is an apocalyptic number.

13331856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13331856 is an abundant number, since it is smaller than the sum of its proper divisors (21108896).

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

13331856 is a wasteful number, since it uses less digits than its factorization.

13331856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277758 (or 277752 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 13331856 is about 3651.2814188994. The cubic root of 13331856 is about 237.1174621141.

The spelling of 13331856 in words is "thirteen million, three hundred thirty-one thousand, eight hundred fifty-six".