4044013221 has 8 divisors (see below), whose sum is σ = 5405465664. Its totient is φ = 2689284800.

The previous prime is 4044013213. The next prime is 4044013241. The reversal of 4044013221 is 1223104404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4044013221 - 2³ = 4044013213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044013201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1679601 + ... + 1682006.

It is an arithmetic number, because the mean of its divisors is an integer number (675683208).

Almost surely, 2^4044013221 is an apocalyptic number.

It is an amenable number.

4044013221 is a deficient number, since it is larger than the sum of its proper divisors (1361452443).

4044013221 is a wasteful number, since it uses less digits than its factorization.

4044013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362011.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4044013221 is about 63592.5563332691. The cubic root of 4044013221 is about 1593.2020464479.

Adding to 4044013221 its reverse (1223104404), we get a palindrome (5267117625).

The spelling of 4044013221 in words is "four billion, forty-four million, thirteen thousand, two hundred twenty-one".