238688157 has 8 divisors (see below), whose sum is σ = 320680800. Its totient is φ = 157910480.

The previous prime is 238688129. The next prime is 238688179. The reversal of 238688157 is 751886832.

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 238688157 - 2⁷ = 238688029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238680157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303282 + ... + 304067.

It is an arithmetic number, because the mean of its divisors is an integer number (40085100).

Almost surely, 2^238688157 is an apocalyptic number.

It is an amenable number.

238688157 is a deficient number, since it is larger than the sum of its proper divisors (81992643).

238688157 is a wasteful number, since it uses less digits than its factorization.

238688157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607483.

The product of its digits is 645120, while the sum is 48.

The square root of 238688157 is about 15449.5358182698. The cubic root of 238688157 is about 620.3121537732.

The spelling of 238688157 in words is "two hundred thirty-eight million, six hundred eighty-eight thousand, one hundred fifty-seven".