4402420221 has 8 divisors (see below), whose sum is σ = 5882573440. Its totient is φ = 2928606912.

The previous prime is 4402420207. The next prime is 4402420241. The reversal of 4402420221 is 1220242044.

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

It is not a de Polignac number, because 4402420221 - 2¹⁸ = 4402158077 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 (4402420241) 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 7 ways as a sum of consecutive naturals, for example, 1583356 + ... + 1586133.

It is an arithmetic number, because the mean of its divisors is an integer number (735321680).

Almost surely, 2^4402420221 is an apocalyptic number.

It is an amenable number.

4402420221 is a deficient number, since it is larger than the sum of its proper divisors (1480153219).

4402420221 is a wasteful number, since it uses less digits than its factorization.

4402420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169955.

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

The square root of 4402420221 is about 66350.7364013392. The cubic root of 4402420221 is about 1638.9429313655.

Adding to 4402420221 its reverse (1220242044), we get a palindrome (5622662265).

The spelling of 4402420221 in words is "four billion, four hundred two million, four hundred twenty thousand, two hundred twenty-one".