239980 has 36 divisors (see below), whose sum is σ = 553392. Its totient is φ = 87360.

The previous prime is 239977. The next prime is 239999. The reversal of 239980 is 89932.

It is a happy number.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3345 + ... + 3415.

It is an arithmetic number, because the mean of its divisors is an integer number (15372).

2²³⁹⁹⁸⁰ is an apocalyptic number.

239980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276696).

239980 is an abundant number, since it is smaller than the sum of its proper divisors (313412).

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

239980 is a wasteful number, since it uses less digits than its factorization.

239980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 239980 is about 489.8775357168. The cubic root of 239980 is about 62.1429238308.

The spelling of 239980 in words is "two hundred thirty-nine thousand, nine hundred eighty".