238218432 has 56 divisors (see below), whose sum is σ = 647340336. Its totient is φ = 77257728.

The previous prime is 238218373. The next prime is 238218437. The reversal of 238218432 is 234812832.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 238218393 and 238218402.

It is not an unprimeable number, because it can be changed into a prime (238218437) 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, 9663 + ... + 23870.

Almost surely, 2^238218432 is an apocalyptic number.

It is an amenable number.

238218432 is an abundant number, since it is smaller than the sum of its proper divisors (409121904).

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

238218432 is a wasteful number, since it uses less digits than its factorization.

238218432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33585 (or 33575 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 238218432 is about 15434.3264187330. The cubic root of 238218432 is about 619.9049732960.

The spelling of 238218432 in words is "two hundred thirty-eight million, two hundred eighteen thousand, four hundred thirty-two".