12816328 has 32 divisors (see below), whose sum is σ = 27820800. Its totient is φ = 5421312.

The previous prime is 12816277. The next prime is 12816337. The reversal of 12816328 is 82361821.

12816328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12816328.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2976 + ... + 5872.

It is an arithmetic number, because the mean of its divisors is an integer number (869400).

Almost surely, 2^12816328 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 12816328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13910400).

12816328 is an abundant number, since it is smaller than the sum of its proper divisors (15004472).

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

12816328 is a wasteful number, since it uses less digits than its factorization.

12816328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989 (or 2985 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 12816328 is about 3579.9899441200. The cubic root of 12816328 is about 234.0208421302.

The spelling of 12816328 in words is "twelve million, eight hundred sixteen thousand, three hundred twenty-eight".