440044220 has 96 divisors (see below), whose sum is σ = 1167022080. Its totient is φ = 135383040.

The previous prime is 440044193. The next prime is 440044249. The reversal of 440044220 is 22440044.

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 = 440044192 and 440044201.

It is a congruent number.

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, 119852 + ... + 123468.

It is an arithmetic number, because the mean of its divisors is an integer number (12156480).

Almost surely, 2^440044220 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 440044220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583511040).

440044220 is an abundant number, since it is smaller than the sum of its proper divisors (726977860).

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

440044220 is a wasteful number, since it uses less digits than its factorization.

440044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723 (or 3721 counting only the distinct ones).

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

The square root of 440044220 is about 20977.2309898137. The cubic root of 440044220 is about 760.6159710802.

Adding to 440044220 its reverse (22440044), we get a palindrome (462484264).

The spelling of 440044220 in words is "four hundred forty million, forty-four thousand, two hundred twenty".