238857134 has 8 divisors (see below), whose sum is σ = 364358520. Its totient is φ = 117404296.

The previous prime is 238857133. The next prime is 238857169. The reversal of 238857134 is 431758832.

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

It is a junction number, because it is equal to n+sod(n) for n = 238857091 and 238857100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238857133) 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 3 ways as a sum of consecutive naturals, for example, 1011989 + ... + 1012224.

It is an arithmetic number, because the mean of its divisors is an integer number (45544815).

Almost surely, 2^238857134 is an apocalyptic number.

238857134 is a deficient number, since it is larger than the sum of its proper divisors (125501386).

238857134 is a wasteful number, since it uses less digits than its factorization.

238857134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024274.

The product of its digits is 161280, while the sum is 41.

The square root of 238857134 is about 15455.0035263665. The cubic root of 238857134 is about 620.4585005976.

The spelling of 238857134 in words is "two hundred thirty-eight million, eight hundred fifty-seven thousand, one hundred thirty-four".