238474839 has 8 divisors (see below), whose sum is σ = 318658032. Its totient is φ = 158637440.

The previous prime is 238474829. The next prime is 238474883. The reversal of 238474839 is 938474832.

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 238474839 - 2⁴ = 238474823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238474829) 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 7 ways as a sum of consecutive naturals, for example, 84834 + ... + 87599.

It is an arithmetic number, because the mean of its divisors is an integer number (39832254).

Almost surely, 2^238474839 is an apocalyptic number.

238474839 is a deficient number, since it is larger than the sum of its proper divisors (80183193).

238474839 is a wasteful number, since it uses less digits than its factorization.

238474839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172897.

The product of its digits is 1161216, while the sum is 48.

The square root of 238474839 is about 15442.6305725417. The cubic root of 238474839 is about 620.1273056308.

The spelling of 238474839 in words is "two hundred thirty-eight million, four hundred seventy-four thousand, eight hundred thirty-nine".