224443220 has 12 divisors (see below), whose sum is σ = 471330804. Its totient is φ = 89777280.

The previous prime is 224443201. The next prime is 224443253. The reversal of 224443220 is 22344422.

224443220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138250564 + 86192656 = 11758^2 + 9284^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611061 + ... + 5611100.

It is an arithmetic number, because the mean of its divisors is an integer number (39277567).

Almost surely, 2^224443220 is an apocalyptic number.

224443220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

224443220 is an abundant number, since it is smaller than the sum of its proper divisors (246887584).

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

224443220 is a wasteful number, since it uses less digits than its factorization.

224443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222170 (or 11222168 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 224443220 is about 14981.4291708101. The cubic root of 224443220 is about 607.7180890956.

Adding to 224443220 its reverse (22344422), we get a palindrome (246787642).

The spelling of 224443220 in words is "two hundred twenty-four million, four hundred forty-three thousand, two hundred twenty".