13680488 has 8 divisors (see below), whose sum is σ = 25650930. Its totient is φ = 6840240.

The previous prime is 13680479. The next prime is 13680539. The reversal of 13680488 is 88408631.

It can be written as a sum of positive squares in only one way, i.e., 12376324 + 1304164 = 3518^2 + 1142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855023 + ... + 855038.

Almost surely, 2^13680488 is an apocalyptic number.

It is an amenable number.

13680488 is a deficient number, since it is larger than the sum of its proper divisors (11970442).

13680488 is a wasteful number, since it uses less digits than its factorization.

13680488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710067 (or 1710063 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 13680488 is about 3698.7143712377. The cubic root of 13680488 is about 239.1666001098.

The spelling of 13680488 in words is "thirteen million, six hundred eighty thousand, four hundred eighty-eight".