229018220 has 48 divisors (see below), whose sum is σ = 526811040. Its totient is φ = 83241984.

The previous prime is 229018219. The next prime is 229018243. The reversal of 229018220 is 22810922.

229018220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 229018220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754 + ... + 21473.

It is an arithmetic number, because the mean of its divisors is an integer number (10975230).

Almost surely, 2^229018220 is an apocalyptic number.

229018220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

229018220 is an abundant number, since it is smaller than the sum of its proper divisors (297792820).

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

229018220 is a wasteful number, since it uses less digits than its factorization.

229018220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23282 (or 23280 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 229018220 is about 15133.3479441927. The cubic root of 229018220 is about 611.8195425341.

The spelling of 229018220 in words is "two hundred twenty-nine million, eighteen thousand, two hundred twenty".