4044857221 has 8 divisors (see below), whose sum is σ = 4139856864. Its totient is φ = 3949900080.

The previous prime is 4044857189. The next prime is 4044857227. The reversal of 4044857221 is 1227584404.

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 4044857221 - 2⁵ = 4044857189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044857227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264186 + ... + 279076.

It is an arithmetic number, because the mean of its divisors is an integer number (517482108).

Almost surely, 2^4044857221 is an apocalyptic number.

It is an amenable number.

4044857221 is a deficient number, since it is larger than the sum of its proper divisors (94999643).

4044857221 is a wasteful number, since it uses less digits than its factorization.

4044857221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21251.

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 4044857221 is about 63599.1919838609. The cubic root of 4044857221 is about 1593.3128743903.

The spelling of 4044857221 in words is "four billion, forty-four million, eight hundred fifty-seven thousand, two hundred twenty-one".