12880912 has 40 divisors (see below), whose sum is σ = 27453600. Its totient is φ = 5806080.

The previous prime is 12880859. The next prime is 12880913. The reversal of 12880912 is 21908821.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12880913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28464 + ... + 28912.

It is an arithmetic number, because the mean of its divisors is an integer number (686340).

Almost surely, 2^12880912 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 12880912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13726800).

12880912 is an abundant number, since it is smaller than the sum of its proper divisors (14572688).

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

12880912 is a wasteful number, since it uses less digits than its factorization.

12880912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 625 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 12880912 is about 3588.9987461686. The cubic root of 12880912 is about 234.4132760480.

It can be divided in two parts, 128809 and 12, that added together give a palindrome (128821).

The spelling of 12880912 in words is "twelve million, eight hundred eighty thousand, nine hundred twelve".