13888680 has 128 divisors (see below), whose sum is σ = 46569600. Its totient is φ = 3290112.

The previous prime is 13888669. The next prime is 13888723. The reversal of 13888680 is 8688831.

It is a happy number.

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 in 31 ways as a sum of consecutive naturals, for example, 45087 + ... + 45393.

It is an arithmetic number, because the mean of its divisors is an integer number (363825).

Almost surely, 2^13888680 is an apocalyptic number.

13888680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13888680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23284800).

13888680 is an abundant number, since it is smaller than the sum of its proper divisors (32680920).

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

13888680 is a wasteful number, since it uses less digits than its factorization.

13888680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 42.

The square root of 13888680 is about 3726.7519370090. The cubic root of 13888680 is about 240.3737232989.

The spelling of 13888680 in words is "thirteen million, eight hundred eighty-eight thousand, six hundred eighty".