4440021320044 has 12 divisors (see below), whose sum is σ = 7771345659000. Its totient is φ = 2219636846048.

The previous prime is 4440021320039. The next prime is 4440021320047. The reversal of 4440021320044 is 4400231200444.

It is a junction number, because it is equal to n+sod(n) for n = 4440021319994 and 4440021320021.

It is not an unprimeable number, because it can be changed into a prime (4440021320047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93426769 + ... + 93474280.

It is an arithmetic number, because the mean of its divisors is an integer number (647612138250).

Almost surely, 2^{4440021320044} is an apocalyptic number.

It is an amenable number.

4440021320044 is a deficient number, since it is larger than the sum of its proper divisors (3331324338956).

4440021320044 is a wasteful number, since it uses less digits than its factorization.

4440021320044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186906992 (or 186906990 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 4440021320044 its reverse (4400231200444), we get a palindrome (8840252520488).

The spelling of 4440021320044 in words is "four trillion, four hundred forty billion, twenty-one million, three hundred twenty thousand, forty-four".