234218 has 4 divisors (see below), whose sum is σ = 351330. Its totient is φ = 117108.

The previous prime is 234217. The next prime is 234239. The reversal of 234218 is 812432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 218089 + 16129 = 467^2 + 127^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 234218.

It is not an unprimeable number, because it can be changed into a prime (234211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58553 + ... + 58556.

234218 is a Friedman number, since it can be written as 22^(4*1)-38, using all its digits and the basic arithmetic operations.

2²³⁴²¹⁸ is an apocalyptic number.

234218 is a deficient number, since it is larger than the sum of its proper divisors (117112).

234218 is a wasteful number, since it uses less digits than its factorization.

234218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117111.

The product of its digits is 384, while the sum is 20.

The square root of 234218 is about 483.9607422095. The cubic root of 234218 is about 61.6415318393.

The spelling of 234218 in words is "two hundred thirty-four thousand, two hundred eighteen".