12816944 has 60 divisors (see below), whose sum is σ = 30047184. Its totient is φ = 5187456.

The previous prime is 12816931. The next prime is 12816949. The reversal of 12816944 is 44961821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12816949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40274 + ... + 40590.

Almost surely, 2^12816944 is an apocalyptic number.

12816944 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 12816944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15023592).

12816944 is an abundant number, since it is smaller than the sum of its proper divisors (17230240).

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

12816944 is a wasteful number, since it uses less digits than its factorization.

12816944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 345 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 12816944 is about 3580.0759768474. The cubic root of 12816944 is about 234.0245913718.

The spelling of 12816944 in words is "twelve million, eight hundred sixteen thousand, nine hundred forty-four".