4444303221 has 40 divisors (see below), whose sum is σ = 6840941184. Its totient is φ = 2873888640.

The previous prime is 4444303219. The next prime is 4444303267. The reversal of 4444303221 is 1223034444.

It is a happy number.

4444303221 is a `hidden beast` number, since 4 + 4 + 4 + 430 + 3 + 221 = 666.

It is not a de Polignac number, because 4444303221 - 2¹ = 4444303219 is a prime.

It is a super-2 number, since 2×4444303221² = 39503662240381949682, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444303321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 425026 + ... + 435356.

Almost surely, 2^4444303221 is an apocalyptic number.

It is an amenable number.

4444303221 is a deficient number, since it is larger than the sum of its proper divisors (2396637963).

4444303221 is a wasteful number, since it uses less digits than its factorization.

4444303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10503 (or 10494 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 4444303221 is about 66665.6074824193. The cubic root of 4444303221 is about 1644.1239683543.

Adding to 4444303221 its reverse (1223034444), we get a palindrome (5667337665).

The spelling of 4444303221 in words is "four billion, four hundred forty-four million, three hundred three thousand, two hundred twenty-one".