4440021044 has 6 divisors (see below), whose sum is σ = 7770036834. Its totient is φ = 2220010520.

The previous prime is 4440021041. The next prime is 4440021049. The reversal of 4440021044 is 4401200444.

It can be written as a sum of positive squares in only one way, i.e., 4252604944 + 187416100 = 65212^2 + 13690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440021041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555002627 + ... + 555002634.

It is an arithmetic number, because the mean of its divisors is an integer number (1295006139).

Almost surely, 2^4440021044 is an apocalyptic number.

It is an amenable number.

4440021044 is a deficient number, since it is larger than the sum of its proper divisors (3330015790).

4440021044 is a wasteful number, since it uses less digits than its factorization.

4440021044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110005265 (or 1110005263 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 4440021044 is about 66633.4829046179. The cubic root of 4440021044 is about 1643.5957496511.

Adding to 4440021044 its reverse (4401200444), we get a palindrome (8841221488).

The spelling of 4440021044 in words is "four billion, four hundred forty million, twenty-one thousand, forty-four".