229910220 has 72 divisors (see below), whose sum is σ = 708860880. Its totient is φ = 60301440.

The previous prime is 229910209. The next prime is 229910221. The reversal of 229910220 is 22019922.

229910220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (229910221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 511 + ... + 21449.

It is an arithmetic number, because the mean of its divisors is an integer number (9845290).

Almost surely, 2^229910220 is an apocalyptic number.

229910220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229910220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354430440).

229910220 is an abundant number, since it is smaller than the sum of its proper divisors (478950660).

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

229910220 is a wasteful number, since it uses less digits than its factorization.

229910220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21015 (or 21010 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 229910220 is about 15162.7906402483. The cubic root of 229910220 is about 612.6128360770.

The spelling of 229910220 in words is "two hundred twenty-nine million, nine hundred ten thousand, two hundred twenty".