4440423220 has 12 divisors (see below), whose sum is σ = 9324888804. Its totient is φ = 1776169280.

The previous prime is 4440423209. The next prime is 4440423241. The reversal of 4440423220 is 223240444.

It can be written as a sum of positive squares in 2 ways, for example, as 2210128144 + 2230295076 = 47012^2 + 47226^2 .

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, 111010561 + ... + 111010600.

It is an arithmetic number, because the mean of its divisors is an integer number (777074067).

Almost surely, 2^4440423220 is an apocalyptic number.

It is an amenable number.

4440423220 is an abundant number, since it is smaller than the sum of its proper divisors (4884465584).

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

4440423220 is a wasteful number, since it uses less digits than its factorization.

4440423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222021170 (or 222021168 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 4440423220 is about 66636.5006584229. The cubic root of 4440423220 is about 1643.6453736506.

Adding to 4440423220 its reverse (223240444), we get a palindrome (4663663664).

The spelling of 4440423220 in words is "four billion, four hundred forty million, four hundred twenty-three thousand, two hundred twenty".