12816032 has 48 divisors (see below), whose sum is σ = 26943840. Its totient is φ = 5983488.

The previous prime is 12816029. The next prime is 12816043. The reversal of 12816032 is 23061821.

It is a junction number, because it is equal to n+sod(n) for n = 12815989 and 12816007.

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, 64958 + ... + 65154.

It is an arithmetic number, because the mean of its divisors is an integer number (561330).

Almost surely, 2^12816032 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 12816032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13471920).

12816032 is an abundant number, since it is smaller than the sum of its proper divisors (14127808).

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

12816032 is a wasteful number, since it uses less digits than its factorization.

12816032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 12816032 is about 3579.9486029830. The cubic root of 12816032 is about 234.0190405039.

Adding to 12816032 its reverse (23061821), we get a palindrome (35877853).

The spelling of 12816032 in words is "twelve million, eight hundred sixteen thousand, thirty-two".