238571166 has 16 divisors (see below), whose sum is σ = 505209744. Its totient is φ = 74845824.

The previous prime is 238571143. The next prime is 238571171. The reversal of 238571166 is 661175832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1169365 + ... + 1169568.

It is an arithmetic number, because the mean of its divisors is an integer number (31575609).

Almost surely, 2^238571166 is an apocalyptic number.

238571166 is an abundant number, since it is smaller than the sum of its proper divisors (266638578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238571166 is a wasteful number, since it uses less digits than its factorization.

238571166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338955.

The product of its digits is 60480, while the sum is 39.

The square root of 238571166 is about 15445.7491239499. The cubic root of 238571166 is about 620.2107902758.

The spelling of 238571166 in words is "two hundred thirty-eight million, five hundred seventy-one thousand, one hundred sixty-six".