444021444004 has 12 divisors (see below), whose sum is σ = 803831924700. Its totient is φ = 214355179808.

The previous prime is 444021443993. The next prime is 444021444011. The reversal of 444021444004 is 400444120444.

It can be written as a sum of positive squares in 2 ways, for example, as 196823547904 + 247197896100 = 443648^2 + 497190^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913885419 + ... + 1913885650.

It is an arithmetic number, because the mean of its divisors is an integer number (66985993725).

Almost surely, 2^444021444004 is an apocalyptic number.

It is an amenable number.

444021444004 is a deficient number, since it is larger than the sum of its proper divisors (359810480696).

444021444004 is a wasteful number, since it uses less digits than its factorization.

444021444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3827771102 (or 3827771100 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 444021444004 its reverse (400444120444), we get a palindrome (844465564448).

The spelling of 444021444004 in words is "four hundred forty-four billion, twenty-one million, four hundred forty-four thousand, four".