235218 has 16 divisors (see below), whose sum is σ = 475200. Its totient is φ = 77616.

The previous prime is 235211. The next prime is 235231. The reversal of 235218 is 812532.

It is a junction number, because it is equal to n+sod(n) for n = 235194 and 235203.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 235218.

It is not an unprimeable number, because it can be changed into a prime (235211) by changing a digit.

235218 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 7 ways as a sum of consecutive naturals, for example, 1083 + ... + 1281.

It is an arithmetic number, because the mean of its divisors is an integer number (29700).

2²³⁵²¹⁸ is an apocalyptic number.

235218 is an abundant number, since it is smaller than the sum of its proper divisors (239982).

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

235218 is a wasteful number, since it uses less digits than its factorization.

235218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its digits is 480, while the sum is 21.

The square root of 235218 is about 484.9927834515. The cubic root of 235218 is about 61.7291340056.

The spelling of 235218 in words is "two hundred thirty-five thousand, two hundred eighteen".