223310220 has 96 divisors (see below), whose sum is σ = 745694208. Its totient is φ = 48820992.

The previous prime is 223310209. The next prime is 223310239. The reversal of 223310220 is 22013322.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 223310220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1899 + ... + 21218.

It is an arithmetic number, because the mean of its divisors is an integer number (7767648).

Almost surely, 2^223310220 is an apocalyptic number.

223310220 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 223310220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372847104).

223310220 is an abundant number, since it is smaller than the sum of its proper divisors (522383988).

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

223310220 is a wasteful number, since it uses less digits than its factorization.

223310220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23159 (or 23157 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 223310220 is about 14943.5678470705. The cubic root of 223310220 is about 606.6937669870.

Adding to 223310220 its reverse (22013322), we get a palindrome (245323542).

The spelling of 223310220 in words is "two hundred twenty-three million, three hundred ten thousand, two hundred twenty".