4223440220 has 72 divisors (see below), whose sum is σ = 9641307984. Its totient is φ = 1552932864.

The previous prime is 4223440189. The next prime is 4223440231. The reversal of 4223440220 is 220443224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240044 + ... + 257036.

Almost surely, 2^4223440220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4223440220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4820653992).

4223440220 is an abundant number, since it is smaller than the sum of its proper divisors (5417867764).

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

4223440220 is a wasteful number, since it uses less digits than its factorization.

4223440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17079 (or 17060 counting only the distinct ones).

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

The square root of 4223440220 is about 64988.0005847233. Note that the first 3 decimals coincide. The cubic root of 4223440220 is about 1616.4245970974.

Adding to 4223440220 its reverse (220443224), we get a palindrome (4443883444).

The spelling of 4223440220 in words is "four billion, two hundred twenty-three million, four hundred forty thousand, two hundred twenty".