13337856 has 108 divisors (see below), whose sum is σ = 44003232. Its totient is φ = 3806208.

The previous prime is 13337837. The next prime is 13337887. The reversal of 13337856 is 65873331.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 13337856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15715 + ... + 16541.

Almost surely, 2^13337856 is an apocalyptic number.

13337856 is a gapful number since it is divisible by the number (16) 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 13337856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22001616).

13337856 is an abundant number, since it is smaller than the sum of its proper divisors (30665376).

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

13337856 is an equidigital number, since it uses as much as digits as its factorization.

13337856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856 (or 839 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 13337856 is about 3652.1029558324. The cubic root of 13337856 is about 237.1530283398.

The spelling of 13337856 in words is "thirteen million, three hundred thirty-seven thousand, eight hundred fifty-six".