13908680 has 16 divisors (see below), whose sum is σ = 31294620. Its totient is φ = 5563456.

The previous prime is 13908667. The next prime is 13908683. The reversal of 13908680 is 8680931.

It can be written as a sum of positive squares in 2 ways, for example, as 13410244 + 498436 = 3662^2 + 706^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13908680.

It is not an unprimeable number, because it can be changed into a prime (13908683) by changing a digit.

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, 173819 + ... + 173898.

Almost surely, 2^13908680 is an apocalyptic number.

13908680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13908680 is an abundant number, since it is smaller than the sum of its proper divisors (17385940).

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

13908680 is a wasteful number, since it uses less digits than its factorization.

13908680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347728 (or 347724 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 13908680 is about 3729.4342734522. The cubic root of 13908680 is about 240.4890490819.

The spelling of 13908680 in words is "thirteen million, nine hundred eight thousand, six hundred eighty".