230904 has 32 divisors (see below), whose sum is σ = 642000. Its totient is φ = 76896.

The previous prime is 230891. The next prime is 230929. The reversal of 230904 is 409032.

230904 = 8² + 9² + ... + 88².

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319 + ... + 750.

2²³⁰⁹⁰⁴ is an apocalyptic number.

230904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

230904 is an abundant number, since it is smaller than the sum of its proper divisors (411096).

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

230904 is a wasteful number, since it uses less digits than its factorization.

230904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 230904 is about 480.5247132042. The cubic root of 230904 is about 61.3494234198.

Adding to 230904 its reverse (409032), we get a palindrome (639936).

The spelling of 230904 in words is "two hundred thirty thousand, nine hundred four".