239980986 has 48 divisors (see below), whose sum is σ = 601785600. Its totient is φ = 67695264.

The previous prime is 239980981. The next prime is 239980987. The reversal of 239980986 is 689089932.

It is not an unprimeable number, because it can be changed into a prime (239980981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2101 + ... + 22008.

It is an arithmetic number, because the mean of its divisors is an integer number (12537200).

Almost surely, 2^239980986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 239980986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300892800).

239980986 is an abundant number, since it is smaller than the sum of its proper divisors (361804614).

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

239980986 is a wasteful number, since it uses less digits than its factorization.

239980986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24203 (or 24200 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 239980986 is about 15491.3196984634. The cubic root of 239980986 is about 621.4300893910.

The spelling of 239980986 in words is "two hundred thirty-nine million, nine hundred eighty thousand, nine hundred eighty-six".