13680528 has 40 divisors (see below), whose sum is σ = 36301248. Its totient is φ = 4436352.

The previous prime is 13680479. The next prime is 13680539. The reversal of 13680528 is 82508631.

It is a happy number.

13680528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2076 + ... + 5627.

Almost surely, 2^13680528 is an apocalyptic number.

It is an amenable number.

13680528 is an abundant number, since it is smaller than the sum of its proper divisors (22620720).

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

13680528 is a wasteful number, since it uses less digits than its factorization.

13680528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7751 (or 7745 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 13680528 is about 3698.7197785180. The cubic root of 13680528 is about 239.1668332071.

The spelling of 13680528 in words is "thirteen million, six hundred eighty thousand, five hundred twenty-eight".