4400440220 has 48 divisors (see below), whose sum is σ = 10132280928. Its totient is φ = 1592021760.

The previous prime is 4400440207. The next prime is 4400440273. The reversal of 4400440220 is 220440044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4400440192 and 4400440201.

It is a congruent number.

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, 7427 + ... + 94106.

It is an arithmetic number, because the mean of its divisors is an integer number (211089186).

Almost surely, 2^4400440220 is an apocalyptic number.

It is an amenable number.

4400440220 is an abundant number, since it is smaller than the sum of its proper divisors (5731840708).

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

4400440220 is a wasteful number, since it uses less digits than its factorization.

4400440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101750 (or 101748 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4400440220 is about 66335.8140072163. The cubic root of 4400440220 is about 1638.6971881076.

Adding to 4400440220 its reverse (220440044), we get a palindrome (4620880264).

The spelling of 4400440220 in words is "four billion, four hundred million, four hundred forty thousand, two hundred twenty".