239920 has 20 divisors (see below), whose sum is σ = 558000. Its totient is φ = 95936.

The previous prime is 239893. The next prime is 239929. The reversal of 239920 is 29932.

239920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (239929) by changing a digit.

239920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (27900).

2²³⁹⁹²⁰ is an apocalyptic number.

239920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239920 is an abundant number, since it is smaller than the sum of its proper divisors (318080).

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

239920 is a wasteful number, since it uses less digits than its factorization.

239920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012 (or 3006 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 239920 is about 489.8162920933. The cubic root of 239920 is about 62.1377443906.

The spelling of 239920 in words is "two hundred thirty-nine thousand, nine hundred twenty".