4044344221 has 4 divisors (see below), whose sum is σ = 4046357344. Its totient is φ = 4042331100.

The previous prime is 4044344209. The next prime is 4044344243. The reversal of 4044344221 is 1224434404.

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 not a de Polignac number, because 4044344221 - 2²⁹ = 3507473309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4044344221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044344201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1003545 + ... + 1007566.

It is an arithmetic number, because the mean of its divisors is an integer number (1011589336).

Almost surely, 2^4044344221 is an apocalyptic number.

It is an amenable number.

4044344221 is a deficient number, since it is larger than the sum of its proper divisors (2013123).

4044344221 is a wasteful number, since it uses less digits than its factorization.

4044344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013122.

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4044344221 is about 63595.1587858699. The cubic root of 4044344221 is about 1593.2455127986.

Adding to 4044344221 its reverse (1224434404), we get a palindrome (5268778625).

The spelling of 4044344221 in words is "four billion, forty-four million, three hundred forty-four thousand, two hundred twenty-one".