13969680 has 40 divisors (see below), whose sum is σ = 43306752. Its totient is φ = 3725184.

The previous prime is 13969679. The next prime is 13969691. The reversal of 13969680 is 8696931.

It is a tau number, because it is divible by the number of its divisors (40).

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, 28864 + ... + 29343.

Almost surely, 2^13969680 is an apocalyptic number.

13969680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13969680 is an abundant number, since it is smaller than the sum of its proper divisors (29337072).

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

13969680 is a wasteful number, since it uses less digits than its factorization.

13969680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58223 (or 58217 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 13969680 is about 3737.6035102723. The cubic root of 13969680 is about 240.8401113447.

The spelling of 13969680 in words is "thirteen million, nine hundred sixty-nine thousand, six hundred eighty".