230791728 has 40 divisors (see below), whose sum is σ = 631285488. Its totient is φ = 72404992.

The previous prime is 230791723. The next prime is 230791783. The reversal of 230791728 is 827197032.

230791728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (230791721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140601 + ... + 142232.

Almost surely, 2^230791728 is an apocalyptic number.

It is an amenable number.

230791728 is an abundant number, since it is smaller than the sum of its proper divisors (400493760).

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

230791728 is a wasteful number, since it uses less digits than its factorization.

230791728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282861 (or 282855 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 230791728 is about 15191.8309627247. The cubic root of 230791728 is about 613.3947853781.

The spelling of 230791728 in words is "two hundred thirty million, seven hundred ninety-one thousand, seven hundred twenty-eight".