238808423 has 4 divisors (see below), whose sum is σ = 272923920. Its totient is φ = 204692928.

The previous prime is 238808413. The next prime is 238808431. The reversal of 238808423 is 324808832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238808423 - 2²² = 234614119 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 (238808413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17057738 + ... + 17057751.

It is an arithmetic number, because the mean of its divisors is an integer number (68230980).

Almost surely, 2^238808423 is an apocalyptic number.

238808423 is a deficient number, since it is larger than the sum of its proper divisors (34115497).

238808423 is an equidigital number, since it uses as much as digits as its factorization.

238808423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34115496.

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 238808423 is about 15453.4275486055. The cubic root of 238808423 is about 620.4163202808.

The spelling of 238808423 in words is "two hundred thirty-eight million, eight hundred eight thousand, four hundred twenty-three".