12956944 has 80 divisors (see below), whose sum is σ = 33747840. Its totient is φ = 4654080.

The previous prime is 12956927. The next prime is 12956947. The reversal of 12956944 is 44965921.

It is a junction number, because it is equal to n+sod(n) for n = 12956897 and 12956906.

It is not an unprimeable number, because it can be changed into a prime (12956947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15612 + ... + 16420.

It is an arithmetic number, because the mean of its divisors is an integer number (421848).

Almost surely, 2^12956944 is an apocalyptic number.

12956944 is a gapful number since it is divisible by the number (14) 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 12956944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16873920).

12956944 is an abundant number, since it is smaller than the sum of its proper divisors (20790896).

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

12956944 is a wasteful number, since it uses less digits than its factorization.

12956944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 842 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 12956944 is about 3599.5755305313. The cubic root of 12956944 is about 234.8735943096.

The spelling of 12956944 in words is "twelve million, nine hundred fifty-six thousand, nine hundred forty-four".