128914432 has 44 divisors (see below), whose sum is σ = 261688480. Its totient is φ = 63461376.

The previous prime is 128914421. The next prime is 128914439. The reversal of 128914432 is 234419821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128914439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67669 + ... + 69547.

Almost surely, 2^128914432 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 128914432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130844240).

128914432 is an abundant number, since it is smaller than the sum of its proper divisors (132774048).

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

128914432 is an equidigital number, since it uses as much as digits as its factorization.

128914432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966 (or 1948 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 128914432 is about 11354.0491455692. The cubic root of 128914432 is about 505.1656901661.

The spelling of 128914432 in words is "one hundred twenty-eight million, nine hundred fourteen thousand, four hundred thirty-two".