4444221585 has 16 divisors (see below), whose sum is σ = 7131254976. Its totient is φ = 2363418048.

The previous prime is 4444221577. The next prime is 4444221599. The reversal of 4444221585 is 5851224444.

It is not a de Polignac number, because 4444221585 - 2³ = 4444221577 is a prime.

It is a super-3 number, since 3×4444221585³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421714 + ... + 432123.

It is an arithmetic number, because the mean of its divisors is an integer number (445703436).

Almost surely, 2^4444221585 is an apocalyptic number.

It is an amenable number.

4444221585 is a deficient number, since it is larger than the sum of its proper divisors (2687033391).

4444221585 is a wasteful number, since it uses less digits than its factorization.

4444221585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854192.

The product of its digits is 204800, while the sum is 39.

The square root of 4444221585 is about 66664.9951998798. The cubic root of 4444221585 is about 1644.1139014950.

The spelling of 4444221585 in words is "four billion, four hundred forty-four million, two hundred twenty-one thousand, five hundred eighty-five".