239979438 has 12 divisors (see below), whose sum is σ = 519955488. Its totient is φ = 79993140.

The previous prime is 239979433. The next prime is 239979449. The reversal of 239979438 is 834979932.

239979438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239979433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6666078 + ... + 6666113.

It is an arithmetic number, because the mean of its divisors is an integer number (43329624).

Almost surely, 2^239979438 is an apocalyptic number.

239979438 is an abundant number, since it is smaller than the sum of its proper divisors (279976050).

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

239979438 is a wasteful number, since it uses less digits than its factorization.

239979438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13332199 (or 13332196 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 239979438 is about 15491.2697349184. The cubic root of 239979438 is about 621.4287532076.

The spelling of 239979438 in words is "two hundred thirty-nine million, nine hundred seventy-nine thousand, four hundred thirty-eight".