230858 has 4 divisors (see below), whose sum is σ = 346290. Its totient is φ = 115428.

The previous prime is 230849. The next prime is 230861. The reversal of 230858 is 858032.

230858 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., 218089 + 12769 = 467^2 + 113^2 .

It is a Curzon number.

It is an unprimeable number.

230858 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57713 + ... + 57716.

2²³⁰⁸⁵⁸ is an apocalyptic number.

230858 is a deficient number, since it is larger than the sum of its proper divisors (115432).

230858 is a wasteful number, since it uses less digits than its factorization.

230858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115431.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 230858 is about 480.4768464765. The cubic root of 230858 is about 61.3453492001.

It can be divided in two parts, 2 and 30858, that multiplied together give a palindrome (61716).

The spelling of 230858 in words is "two hundred thirty thousand, eight hundred fifty-eight".