230618 has 4 divisors (see below), whose sum is σ = 345930. Its totient is φ = 115308.

The previous prime is 230611. The next prime is 230647. The reversal of 230618 is 816032.

230618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 223729 + 6889 = 473^2 + 83^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 230618.

It is not an unprimeable number, because it can be changed into a prime (230611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57653 + ... + 57656.

2²³⁰⁶¹⁸ is an apocalyptic number.

230618 is a deficient number, since it is larger than the sum of its proper divisors (115312).

230618 is a wasteful number, since it uses less digits than its factorization.

230618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115311.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 230618 is about 480.2270296433. The cubic root of 230618 is about 61.3240836188.

It can be divided in two parts, 230 and 618, that added together give a palindrome (848).

The spelling of 230618 in words is "two hundred thirty thousand, six hundred eighteen".