238431878 has 8 divisors (see below), whose sum is σ = 358729320. Its totient is φ = 118855440.

The previous prime is 238431877. The next prime is 238431889. The reversal of 238431878 is 878134832.

It is a happy number.

238431878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238431877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179423 + ... + 180746.

It is an arithmetic number, because the mean of its divisors is an integer number (44841165).

Almost surely, 2^238431878 is an apocalyptic number.

238431878 is a deficient number, since it is larger than the sum of its proper divisors (120297442).

238431878 is a wasteful number, since it uses less digits than its factorization.

238431878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360502.

The product of its digits is 258048, while the sum is 44.

The square root of 238431878 is about 15441.2395227844. The cubic root of 238431878 is about 620.0900649597.

The spelling of 238431878 in words is "two hundred thirty-eight million, four hundred thirty-one thousand, eight hundred seventy-eight".