13680568 has 16 divisors (see below), whose sum is σ = 27983160. Its totient is φ = 6218400.

The previous prime is 13680559. The next prime is 13680577. The reversal of 13680568 is 86508631.

It is an interprime number because it is at equal distance from previous prime (13680559) and next prime (13680577).

It is a congruent number.

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, 77643 + ... + 77818.

Almost surely, 2^13680568 is an apocalyptic number.

It is an amenable number.

13680568 is an abundant number, since it is smaller than the sum of its proper divisors (14302592).

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

13680568 is a wasteful number, since it uses less digits than its factorization.

13680568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155478 (or 155474 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 13680568 is about 3698.7251857904. The cubic root of 13680568 is about 239.1670663039.

The spelling of 13680568 in words is "thirteen million, six hundred eighty thousand, five hundred sixty-eight".