4004044221 has 8 divisors (see below), whose sum is σ = 5652768384. Its totient is φ = 2512341440.

The previous prime is 4004044183. The next prime is 4004044223. The reversal of 4004044221 is 1224404004.

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 4004044221 - 2⁹ = 4004043709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004044223) 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, 39255285 + ... + 39255386.

It is an arithmetic number, because the mean of its divisors is an integer number (706596048).

Almost surely, 2^4004044221 is an apocalyptic number.

It is an amenable number.

4004044221 is a deficient number, since it is larger than the sum of its proper divisors (1648724163).

4004044221 is a wasteful number, since it uses less digits than its factorization.

4004044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78510691.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4004044221 is about 63277.5175002939. The cubic root of 4004044221 is about 1587.9358551593.

Adding to 4004044221 its reverse (1224404004), we get a palindrome (5228448225).

The spelling of 4004044221 in words is "four billion, four million, forty-four thousand, two hundred twenty-one".