128594232 has 48 divisors (see below), whose sum is σ = 375069240. Its totient is φ = 39567168.

The previous prime is 128594227. The next prime is 128594233. The reversal of 128594232 is 232495821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128594233) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 67758 + ... + 69629.

Almost surely, 2^128594232 is an apocalyptic number.

128594232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128594232 is an abundant number, since it is smaller than the sum of its proper divisors (246475008).

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

128594232 is a wasteful number, since it uses less digits than its factorization.

128594232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137412 (or 137405 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 128594232 is about 11339.9396823793. The cubic root of 128594232 is about 504.7470968425.

The spelling of 128594232 in words is "one hundred twenty-eight million, five hundred ninety-four thousand, two hundred thirty-two".