218234 has 8 divisors (see below), whose sum is σ = 344640. Its totient is φ = 103356.

The previous prime is 218233. The next prime is 218249. The reversal of 218234 is 432812.

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

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (218233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2834 + ... + 2909.

It is an arithmetic number, because the mean of its divisors is an integer number (43080).

2²¹⁸²³⁴ is an apocalyptic number.

218234 is a deficient number, since it is larger than the sum of its proper divisors (126406).

218234 is a wasteful number, since it uses less digits than its factorization.

218234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764.

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

The square root of 218234 is about 467.1552204568. The cubic root of 218234 is about 60.2061427932.

The spelling of 218234 in words is "two hundred eighteen thousand, two hundred thirty-four".