239538 has 32 divisors (see below), whose sum is σ = 536256. Its totient is φ = 70848.

The previous prime is 239531. The next prime is 239539. The reversal of 239538 is 835932.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 2⁷ + 3¹⁰ + 5⁵ + 9² + 3¹¹ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239531) by changing a digit.

239538 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845 + ... + 2927.

It is an arithmetic number, because the mean of its divisors is an integer number (16758).

2²³⁹⁵³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268128).

239538 is an abundant number, since it is smaller than the sum of its proper divisors (296718).

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

239538 is a wasteful number, since it uses less digits than its factorization.

239538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138.

The product of its digits is 6480, while the sum is 30.

The square root of 239538 is about 489.4261946402. The cubic root of 239538 is about 62.1047483540.

It can be divided in two parts, 239 and 538, that added together give a palindrome (777).

The spelling of 239538 in words is "two hundred thirty-nine thousand, five hundred thirty-eight".