239841439 has 2 divisors, whose sum is σ = 239841440. Its totient is φ = 239841438.

The previous prime is 239841421. The next prime is 239841443. The reversal of 239841439 is 934148932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 239841439 - 2⁹ = 239840927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 239841395 and 239841404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239842439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119920719 + 119920720.

It is an arithmetic number, because the mean of its divisors is an integer number (119920720).

Almost surely, 2^239841439 is an apocalyptic number.

239841439 is a deficient number, since it is larger than the sum of its proper divisors (1).

239841439 is an equidigital number, since it uses as much as digits as its factorization.

239841439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 239841439 is about 15486.8150050293. The cubic root of 239841439 is about 621.3096138479.

The spelling of 239841439 in words is "two hundred thirty-nine million, eight hundred forty-one thousand, four hundred thirty-nine".