13578916 has 24 divisors (see below), whose sum is σ = 25727744. Its totient is φ = 6233760.

The previous prime is 13578857. The next prime is 13578919. The reversal of 13578916 is 61987531.

13578916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13578919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11011 + ... + 12181.

Almost surely, 2^13578916 is an apocalyptic number.

It is an amenable number.

13578916 is a deficient number, since it is larger than the sum of its proper divisors (12148828).

13578916 is a wasteful number, since it uses less digits than its factorization.

13578916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411 (or 1409 counting only the distinct ones).

The product of its digits is 45360, while the sum is 40.

The square root of 13578916 is about 3684.9580730315. The cubic root of 13578916 is about 238.5732245895.

The spelling of 13578916 in words is "thirteen million, five hundred seventy-eight thousand, nine hundred sixteen".