238117090 has 8 divisors (see below), whose sum is σ = 428610780. Its totient is φ = 95246832.

The previous prime is 238117073. The next prime is 238117111. The reversal of 238117090 is 90711832.

It can be written as a sum of positive squares in 2 ways, for example, as 227074761 + 11042329 = 15069^2 + 3323^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11905845 + ... + 11905864.

Almost surely, 2^238117090 is an apocalyptic number.

238117090 is a deficient number, since it is larger than the sum of its proper divisors (190493690).

238117090 is a wasteful number, since it uses less digits than its factorization.

238117090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23811716.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 238117090 is about 15431.0430626060. The cubic root of 238117090 is about 619.8170549375.

The spelling of 238117090 in words is "two hundred thirty-eight million, one hundred seventeen thousand, ninety".