238023 has 12 divisors (see below), whose sum is σ = 351000. Its totient is φ = 155376.

The previous prime is 238019. The next prime is 238031. The reversal of 238023 is 320832.

It is not a de Polignac number, because 238023 - 2² = 238019 is a prime.

238023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 237987 and 238005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228 + ... + 726.

It is an arithmetic number, because the mean of its divisors is an integer number (29250).

2²³⁸⁰²³ is an apocalyptic number.

238023 is a deficient number, since it is larger than the sum of its proper divisors (112977).

238023 is a wasteful number, since it uses less digits than its factorization.

238023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 238023 is about 487.8760088383. The cubic root of 238023 is about 61.9735405653.

Adding to 238023 its reverse (320832), we get a palindrome (558855).

It can be divided in two parts, 2 and 38023, that added together give a square (38025 = 195²).

The spelling of 238023 in words is "two hundred thirty-eight thousand, twenty-three".