238256839 has 6 divisors (see below), whose sum is σ = 249066776. Its totient is φ = 227897340.

The previous prime is 238256831. The next prime is 238256849. The reversal of 238256839 is 938652832.

238256839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238256839 - 2³ = 238256831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238256831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224667 + ... + 225724.

Almost surely, 2^238256839 is an apocalyptic number.

238256839 is a deficient number, since it is larger than the sum of its proper divisors (10809937).

238256839 is an equidigital number, since it uses as much as digits as its factorization.

238256839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450437 (or 450414 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 238256839 is about 15435.5705757837. The cubic root of 238256839 is about 619.9382864345.

The spelling of 238256839 in words is "two hundred thirty-eight million, two hundred fifty-six thousand, eight hundred thirty-nine".