13215936 has 56 divisors (see below), whose sum is σ = 37033200. Its totient is φ = 4145152.

The previous prime is 13215929. The next prime is 13215949. The reversal of 13215936 is 63951231.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240 + ... + 5288.

Almost surely, 2^13215936 is an apocalyptic number.

13215936 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 13215936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18516600).

13215936 is an abundant number, since it is smaller than the sum of its proper divisors (23817264).

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

13215936 is a wasteful number, since it uses less digits than its factorization.

13215936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4081 (or 4071 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 13215936 is about 3635.3728832129. The cubic root of 13215936 is about 236.4282180350.

The spelling of 13215936 in words is "thirteen million, two hundred fifteen thousand, nine hundred thirty-six".