238385172 has 24 divisors (see below), whose sum is σ = 585508000. Its totient is φ = 75279456.

The previous prime is 238385171. The next prime is 238385197. The reversal of 238385172 is 271583832.

It is a self number, because there is not a number n which added to its sum of digits gives 238385172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238385171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522547 + ... + 523002.

Almost surely, 2^238385172 is an apocalyptic number.

It is an amenable number.

238385172 is an abundant number, since it is smaller than the sum of its proper divisors (347122828).

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

238385172 is a wasteful number, since it uses less digits than its factorization.

238385172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045575 (or 1045573 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 238385172 is about 15439.7270701266. The cubic root of 238385172 is about 620.0495728659.

The spelling of 238385172 in words is "two hundred thirty-eight million, three hundred eighty-five thousand, one hundred seventy-two".