4400244220440 has 64 divisors (see below), whose sum is σ = 13977246353760. Its totient is φ = 1104375019520.

The previous prime is 4400244220417. The next prime is 4400244220441. The reversal of 4400244220440 is 440224420044.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4400244220398 and 4400244220407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400244220441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078489191 + ... + 1078493270.

Almost surely, 2^{4400244220440} is an apocalyptic number.

4400244220440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4400244220440 is an abundant number, since it is smaller than the sum of its proper divisors (9577002133320).

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

4400244220440 is a wasteful number, since it uses less digits than its factorization.

4400244220440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156982492 (or 2156982488 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 4400244220440 its reverse (440224420044), we get a palindrome (4840468640484).

The spelling of 4400244220440 in words is "four trillion, four hundred billion, two hundred forty-four million, two hundred twenty thousand, four hundred forty".