12156928 has 64 divisors (see below), whose sum is σ = 28311120. Its totient is φ = 5111808.

The previous prime is 12156899. The next prime is 12156983. The reversal of 12156928 is 82965121.

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

Its product of digits (8640) is a multiple of the sum of its prime factors (90).

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 12156893 and 12156902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229350 + ... + 229402.

Almost surely, 2^12156928 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 12156928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14155560).

12156928 is an abundant number, since it is smaller than the sum of its proper divisors (16154192).

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

12156928 is an frugal number, since it uses more digits than its factorization.

12156928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 62 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 12156928 is about 3486.6786488003. The cubic root of 12156928 is about 229.9365168209.

The spelling of 12156928 in words is "twelve million, one hundred fifty-six thousand, nine hundred twenty-eight".