230918 has 4 divisors (see below), whose sum is σ = 346380. Its totient is φ = 115458.

The previous prime is 230891. The next prime is 230929. The reversal of 230918 is 819032.

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

It is a junction number, because it is equal to n+sod(n) for n = 230893 and 230902.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 230918.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57728 + ... + 57731.

It is an arithmetic number, because the mean of its divisors is an integer number (86595).

2²³⁰⁹¹⁸ is an apocalyptic number.

230918 is a deficient number, since it is larger than the sum of its proper divisors (115462).

230918 is a wasteful number, since it uses less digits than its factorization.

230918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115461.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 230918 is about 480.5392803924. The cubic root of 230918 is about 61.3506632924.

The spelling of 230918 in words is "two hundred thirty thousand, nine hundred eighteen".