230309904 has 80 divisors (see below), whose sum is σ = 666653760. Its totient is φ = 67898880.

The previous prime is 230309899. The next prime is 230309929. The reversal of 230309904 is 409903032.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13642 + ... + 25430.

It is an arithmetic number, because the mean of its divisors is an integer number (8333172).

Almost surely, 2^230309904 is an apocalyptic number.

230309904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230309904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333326880).

230309904 is an abundant number, since it is smaller than the sum of its proper divisors (436343856).

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

230309904 is a wasteful number, since it uses less digits than its factorization.

230309904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11848 (or 11842 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 230309904 is about 15175.9646810343. The cubic root of 230309904 is about 612.9676264520.

The spelling of 230309904 in words is "two hundred thirty million, three hundred nine thousand, nine hundred four".