128192432 has 40 divisors (see below), whose sum is σ = 261813600. Its totient is φ = 60684800.

The previous prime is 128192429. The next prime is 128192437. The reversal of 128192432 is 234291821.

It is not an unprimeable number, because it can be changed into a prime (128192437) 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 7 ways as a sum of consecutive naturals, for example, 35444 + ... + 38892.

It is an arithmetic number, because the mean of its divisors is an integer number (6545340).

Almost surely, 2^128192432 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 128192432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130906800).

128192432 is an abundant number, since it is smaller than the sum of its proper divisors (133621168).

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

128192432 is a wasteful number, since it uses less digits than its factorization.

128192432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581 (or 3575 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 128192432 is about 11322.2096783269. The cubic root of 128192432 is about 504.2208446783.

It can be divided in two parts, 12819 and 2432, that added together give a palindrome (15251).

The spelling of 128192432 in words is "one hundred twenty-eight million, one hundred ninety-two thousand, four hundred thirty-two".