4440030221 has 4 divisors (see below), whose sum is σ = 4843669344. Its totient is φ = 4036391100.

The previous prime is 4440030107. The next prime is 4440030247. The reversal of 4440030221 is 1220300444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4440030221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4440030193 and 4440030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440030281) 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, 201819545 + ... + 201819566.

It is an arithmetic number, because the mean of its divisors is an integer number (1210917336).

Almost surely, 2^4440030221 is an apocalyptic number.

It is an amenable number.

4440030221 is a deficient number, since it is larger than the sum of its proper divisors (403639123).

4440030221 is a wasteful number, since it uses less digits than its factorization.

4440030221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403639122.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4440030221 is about 66633.5517663587. The cubic root of 4440030221 is about 1643.5968820232.

Adding to 4440030221 its reverse (1220300444), we get a palindrome (5660330665).

The spelling of 4440030221 in words is "four billion, four hundred forty million, thirty thousand, two hundred twenty-one".