128328932 has 12 divisors (see below), whose sum is σ = 226083900. Its totient is φ = 63733536.

The previous prime is 128328929. The next prime is 128328947. The reversal of 128328932 is 239823821.

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 118940836 = 3064^2 + 10906^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107063 + ... + 108254.

It is an arithmetic number, because the mean of its divisors is an integer number (18840325).

Almost surely, 2^128328932 is an apocalyptic number.

It is an amenable number.

128328932 is a deficient number, since it is larger than the sum of its proper divisors (97754968).

128328932 is a wasteful number, since it uses less digits than its factorization.

128328932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215470 (or 215468 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 128328932 is about 11328.2360498005. The cubic root of 128328932 is about 504.3997468954.

The spelling of 128328932 in words is "one hundred twenty-eight million, three hundred twenty-eight thousand, nine hundred thirty-two".