238772164 has 24 divisors (see below), whose sum is σ = 443751840. Its totient is φ = 112097664.

The previous prime is 238772161. The next prime is 238772203. The reversal of 238772164 is 461277832.

It is not an unprimeable number, because it can be changed into a prime (238772161) 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 7 ways as a sum of consecutive naturals, for example, 5314 + ... + 22489.

It is an arithmetic number, because the mean of its divisors is an integer number (18489660).

Almost surely, 2^238772164 is an apocalyptic number.

It is an amenable number.

238772164 is a deficient number, since it is larger than the sum of its proper divisors (204979676).

238772164 is a wasteful number, since it uses less digits than its factorization.

238772164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27939 (or 27937 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 238772164 is about 15452.2543339152. The cubic root of 238772164 is about 620.3849188005.

The spelling of 238772164 in words is "two hundred thirty-eight million, seven hundred seventy-two thousand, one hundred sixty-four".