238218 has 8 divisors (see below), whose sum is σ = 476448. Its totient is φ = 79404.

The previous prime is 238213. The next prime is 238223. The reversal of 238218 is 812832.

It is an interprime number because it is at equal distance from previous prime (238213) and next prime (238223).

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

238218 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 238218.

It is not an unprimeable number, because it can be changed into a prime (238213) by changing a digit.

238218 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19846 + ... + 19857.

It is an arithmetic number, because the mean of its divisors is an integer number (59556).

2²³⁸²¹⁸ is an apocalyptic number.

238218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

238218 is a wasteful number, since it uses less digits than its factorization.

238218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39708.

The product of its digits is 768, while the sum is 24.

The square root of 238218 is about 488.0758137831. The cubic root of 238218 is about 61.9904598571.

The spelling of 238218 in words is "two hundred thirty-eight thousand, two hundred eighteen".