229218 has 32 divisors (see below), whose sum is σ = 525312. Its totient is φ = 66000.

The previous prime is 229217. The next prime is 229223. The reversal of 229218 is 812922.

It is not an unprimeable number, because it can be changed into a prime (229213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1443 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (16416).

2²²⁹²¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262656).

229218 is an abundant number, since it is smaller than the sum of its proper divisors (296094).

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

229218 is a wasteful number, since it uses less digits than its factorization.

229218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its digits is 576, while the sum is 24.

The square root of 229218 is about 478.7671667940. The cubic root of 229218 is about 61.1997394154.

The spelling of 229218 in words is "two hundred twenty-nine thousand, two hundred eighteen".