13998890256 has 80 divisors (see below), whose sum is σ = 38963339520. Its totient is φ = 4305392640.

The previous prime is 13998890239. The next prime is 13998890267. The reversal of 13998890256 is 65209889931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13998890256.

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 15 ways as a sum of consecutive naturals, for example, 1998921 + ... + 2005911.

It is an arithmetic number, because the mean of its divisors is an integer number (487041744).

Almost surely, 2^13998890256 is an apocalyptic number.

13998890256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13998890256 is an abundant number, since it is smaller than the sum of its proper divisors (24964449264).

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

13998890256 is a wasteful number, since it uses less digits than its factorization.

13998890256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10224 (or 10218 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 60.

The spelling of 13998890256 in words is "thirteen billion, nine hundred ninety-eight million, eight hundred ninety thousand, two hundred fifty-six".