230638 has 4 divisors (see below), whose sum is σ = 345960. Its totient is φ = 115318.

The previous prime is 230611. The next prime is 230647. The reversal of 230638 is 836032.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57658 + ... + 57661.

It is an arithmetic number, because the mean of its divisors is an integer number (86490).

2²³⁰⁶³⁸ is an apocalyptic number.

230638 is a deficient number, since it is larger than the sum of its proper divisors (115322).

230638 is a wasteful number, since it uses less digits than its factorization.

230638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115321.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 230638 is about 480.2478526761. The cubic root of 230638 is about 61.3258563139.

It can be divided in two parts, 230 and 638, that added together give a palindrome (868).

The spelling of 230638 in words is "two hundred thirty thousand, six hundred thirty-eight".