75728432 has 20 divisors (see below), whose sum is σ = 158010720. Its totient is φ = 34951488.

The previous prime is 75728431. The next prime is 75728437. The reversal of 75728432 is 23482757.

It is not an unprimeable number, because it can be changed into a prime (75728431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181832 + ... + 182247.

It is an arithmetic number, because the mean of its divisors is an integer number (7900536).

Almost surely, 2^75728432 is an apocalyptic number.

It is an amenable number.

75728432 is an abundant number, since it is smaller than the sum of its proper divisors (82282288).

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

75728432 is a wasteful number, since it uses less digits than its factorization.

75728432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364100 (or 364094 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 75728432 is about 8702.2084553290. The cubic root of 75728432 is about 423.0772325524.

The spelling of 75728432 in words is "seventy-five million, seven hundred twenty-eight thousand, four hundred thirty-two".