239708990 has 32 divisors (see below), whose sum is σ = 451408896. Its totient is φ = 91476000.

The previous prime is 239708981. The next prime is 239708999. The reversal of 239708990 is 99807932.

239708990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (239708981) and next prime (239708999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239708999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105365 + ... + 107615.

It is an arithmetic number, because the mean of its divisors is an integer number (14106528).

Almost surely, 2^239708990 is an apocalyptic number.

239708990 is a deficient number, since it is larger than the sum of its proper divisors (211699906).

239708990 is a wasteful number, since it uses less digits than its factorization.

239708990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 239708990 is about 15482.5382285980. The cubic root of 239708990 is about 621.1952230095.

The spelling of 239708990 in words is "two hundred thirty-nine million, seven hundred eight thousand, nine hundred ninety".