12128032 has 48 divisors (see below), whose sum is σ = 28244160. Its totient is φ = 5015808.

The previous prime is 12128027. The next prime is 12128059. The reversal of 12128032 is 23082121.

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, 5563 + ... + 7429.

It is an arithmetic number, because the mean of its divisors is an integer number (588420).

Almost surely, 2^12128032 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 12128032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14122080).

12128032 is an abundant number, since it is smaller than the sum of its proper divisors (16116128).

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

12128032 is a wasteful number, since it uses less digits than its factorization.

12128032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12128032 is about 3482.5324119095. The cubic root of 12128032 is about 229.7541923383.

The spelling of 12128032 in words is "twelve million, one hundred twenty-eight thousand, thirty-two".