238590 has 48 divisors (see below), whose sum is σ = 679536. Its totient is φ = 57600.

The previous prime is 238573. The next prime is 238591. The reversal of 238590 is 95832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 870 + ... + 1110.

It is an arithmetic number, because the mean of its divisors is an integer number (14157).

2²³⁸⁵⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339768).

238590 is an abundant number, since it is smaller than the sum of its proper divisors (440946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238590 is a wasteful number, since it uses less digits than its factorization.

238590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 238590 is about 488.4567534593. The cubic root of 238590 is about 62.0227110693.

It can be divided in two parts, 238 and 590, that added together give a palindrome (828).

The spelling of 238590 in words is "two hundred thirty-eight thousand, five hundred ninety".