12988256 has 24 divisors (see below), whose sum is σ = 26397504. Its totient is φ = 6284160.

The previous prime is 12988247. The next prime is 12988273. The reversal of 12988256 is 65288921.

It is a congruent number.

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, 5555 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (1099896).

Almost surely, 2^12988256 is an apocalyptic number.

12988256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12988256 is an abundant number, since it is smaller than the sum of its proper divisors (13409248).

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

12988256 is a wasteful number, since it uses less digits than its factorization.

12988256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13134 (or 13126 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 12988256 is about 3603.9223077086. The cubic root of 12988256 is about 235.0626421205.

The spelling of 12988256 in words is "twelve million, nine hundred eighty-eight thousand, two hundred fifty-six".