239388 has 12 divisors (see below), whose sum is σ = 558600. Its totient is φ = 79792.

The previous prime is 239387. The next prime is 239389. The reversal of 239388 is 883932.

It is an interprime number because it is at equal distance from previous prime (239387) and next prime (239389).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×239388² = 114613229088, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 239388.

It is not an unprimeable number, because it can be changed into a prime (239383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9963 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (46550).

2²³⁹³⁸⁸ is an apocalyptic number.

It is an amenable number.

239388 is an abundant number, since it is smaller than the sum of its proper divisors (319212).

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

239388 is a wasteful number, since it uses less digits than its factorization.

239388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19956 (or 19954 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 239388 is about 489.2729299685. The cubic root of 239388 is about 62.0917822033.

The spelling of 239388 in words is "two hundred thirty-nine thousand, three hundred eighty-eight".