128071832 has 32 divisors (see below), whose sum is σ = 275268000. Its totient is φ = 54722304.

The previous prime is 128071817. The next prime is 128071849. The reversal of 128071832 is 238170821.

It is a congruent number.

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, 16268 + ... + 22820.

It is an arithmetic number, because the mean of its divisors is an integer number (8602125).

Almost surely, 2^128071832 is an apocalyptic number.

It is an amenable number.

128071832 is an abundant number, since it is smaller than the sum of its proper divisors (147196168).

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

128071832 is a wasteful number, since it uses less digits than its factorization.

128071832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915 (or 6911 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 128071832 is about 11316.8826096236. The cubic root of 128071832 is about 504.0626759209.

The spelling of 128071832 in words is "one hundred twenty-eight million, seventy-one thousand, eight hundred thirty-two".