12108928 has 64 divisors (see below), whose sum is σ = 27417600. Its totient is φ = 5280768.

The previous prime is 12108917. The next prime is 12108931. The reversal of 12108928 is 82980121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×12108928² = 293252274618368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12108928.

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, 31425 + ... + 31807.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

Almost surely, 2^12108928 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 12108928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13708800).

12108928 is an abundant number, since it is smaller than the sum of its proper divisors (15308672).

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

12108928 is a wasteful number, since it uses less digits than its factorization.

12108928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 417 counting only the distinct ones).

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

The square root of 12108928 is about 3479.7884993200. The cubic root of 12108928 is about 229.6334931532.

The spelling of 12108928 in words is "twelve million, one hundred eight thousand, nine hundred twenty-eight".