230309918 has 4 divisors (see below), whose sum is σ = 345464880. Its totient is φ = 115154958.

The previous prime is 230309899. The next prime is 230309929. The reversal of 230309918 is 819903032.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57577478 + ... + 57577481.

It is an arithmetic number, because the mean of its divisors is an integer number (86366220).

Almost surely, 2^230309918 is an apocalyptic number.

230309918 is a deficient number, since it is larger than the sum of its proper divisors (115154962).

230309918 is a wasteful number, since it uses less digits than its factorization.

230309918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115154961.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 230309918 is about 15175.9651422900. The cubic root of 230309918 is about 612.9676388722.

The spelling of 230309918 in words is "two hundred thirty million, three hundred nine thousand, nine hundred eighteen".