232745728 has 36 divisors (see below), whose sum is σ = 467242048. Its totient is φ = 115706880.

The previous prime is 232745719. The next prime is 232745731. The reversal of 232745728 is 827547232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43825 + ... + 48847.

Almost surely, 2^232745728 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 232745728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233621024).

232745728 is an abundant number, since it is smaller than the sum of its proper divisors (234496320).

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

232745728 is an equidigital number, since it uses as much as digits as its factorization.

232745728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220 (or 5206 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 232745728 is about 15256.0062926049. The cubic root of 232745728 is about 615.1210267025.

The spelling of 232745728 in words is "two hundred thirty-two million, seven hundred forty-five thousand, seven hundred twenty-eight".