239431379 has 8 divisors (see below), whose sum is σ = 261309888. Its totient is φ = 217571560.

The previous prime is 239431351. The next prime is 239431391. The reversal of 239431379 is 973134932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 239431379 - 2¹⁶ = 239365843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239431319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47624 + ... + 52410.

It is an arithmetic number, because the mean of its divisors is an integer number (32663736).

Almost surely, 2^239431379 is an apocalyptic number.

239431379 is a deficient number, since it is larger than the sum of its proper divisors (21878509).

239431379 is a wasteful number, since it uses less digits than its factorization.

239431379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345.

The product of its digits is 122472, while the sum is 41.

The square root of 239431379 is about 15473.5703378374. The cubic root of 239431379 is about 620.9553248417.

The spelling of 239431379 in words is "two hundred thirty-nine million, four hundred thirty-one thousand, three hundred seventy-nine".