128955932 has 12 divisors (see below), whose sum is σ = 257911920. Its totient is φ = 55266816.

The previous prime is 128955919. The next prime is 128955941. The reversal of 128955932 is 239559821.

128955932 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302757 + ... + 2302812.

It is an arithmetic number, because the mean of its divisors is an integer number (21492660).

Almost surely, 2^128955932 is an apocalyptic number.

It is an amenable number.

128955932 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128955932 is a wasteful number, since it uses less digits than its factorization.

128955932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605580 (or 4605578 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 128955932 is about 11355.8765403645. The cubic root of 128955932 is about 505.2198918217.

The spelling of 128955932 in words is "one hundred twenty-eight million, nine hundred fifty-five thousand, nine hundred thirty-two".