229812 has 24 divisors (see below), whose sum is σ = 585312. Its totient is φ = 69600.

The previous prime is 229799. The next prime is 229813. The reversal of 229812 is 218922.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229813) by changing a digit.

229812 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, 739 + ... + 1002.

It is an arithmetic number, because the mean of its divisors is an integer number (24388).

2²²⁹⁸¹² is an apocalyptic number.

229812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

229812 is an abundant number, since it is smaller than the sum of its proper divisors (355500).

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

229812 is a wasteful number, since it uses less digits than its factorization.

229812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1757 counting only the distinct ones).

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

The square root of 229812 is about 479.3871087128. The cubic root of 229812 is about 61.2525585492.

The spelling of 229812 in words is "two hundred twenty-nine thousand, eight hundred twelve".