13680788 has 12 divisors (see below), whose sum is σ = 26117952. Its totient is φ = 6218520.

The previous prime is 13680773. The next prime is 13680809. The reversal of 13680788 is 88708631.

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, 155420 + ... + 155507.

It is an arithmetic number, because the mean of its divisors is an integer number (2176496).

Almost surely, 2^13680788 is an apocalyptic number.

It is an amenable number.

13680788 is a deficient number, since it is larger than the sum of its proper divisors (12437164).

13680788 is a wasteful number, since it uses less digits than its factorization.

13680788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310942 (or 310940 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 13680788 is about 3698.7549256473. The cubic root of 13680788 is about 239.1683483285.

The spelling of 13680788 in words is "thirteen million, six hundred eighty thousand, seven hundred eighty-eight".