13317680 has 20 divisors (see below), whose sum is σ = 30963792. Its totient is φ = 5327040.

The previous prime is 13317679. The next prime is 13317709. The reversal of 13317680 is 8671331.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83156 + ... + 83315.

Almost surely, 2^13317680 is an apocalyptic number.

13317680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13317680 is an abundant number, since it is smaller than the sum of its proper divisors (17646112).

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

13317680 is a wasteful number, since it uses less digits than its factorization.

13317680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166484 (or 166478 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 13317680 is about 3649.3396662958. The cubic root of 13317680 is about 237.0333885675.

The spelling of 13317680 in words is "thirteen million, three hundred seventeen thousand, six hundred eighty".