12800956 has 36 divisors (see below), whose sum is σ = 26263776. Its totient is φ = 5443200.

The previous prime is 12800951. The next prime is 12800969. The reversal of 12800956 is 65900821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800951) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 47101 + ... + 47371.

Almost surely, 2^12800956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12800956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13131888).

12800956 is an abundant number, since it is smaller than the sum of its proper divisors (13462820).

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

12800956 is a wasteful number, since it uses less digits than its factorization.

12800956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 12800956 is about 3577.8423665668. The cubic root of 12800956 is about 233.9272425807.

The spelling of 12800956 in words is "twelve million, eight hundred thousand, nine hundred fifty-six".