441916221 has 8 divisors (see below), whose sum is σ = 592975264. Its totient is φ = 292734000.

The previous prime is 441916169. The next prime is 441916261. The reversal of 441916221 is 122619144.

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

It is not a de Polignac number, because 441916221 - 2⁷ = 441916093 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 (441916261) 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, 468655 + ... + 469596.

It is an arithmetic number, because the mean of its divisors is an integer number (74121908).

Almost surely, 2^441916221 is an apocalyptic number.

It is an amenable number.

441916221 is a deficient number, since it is larger than the sum of its proper divisors (151059043).

441916221 is a wasteful number, since it uses less digits than its factorization.

441916221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938411.

The product of its digits is 3456, while the sum is 30.

The square root of 441916221 is about 21021.8034668770. The cubic root of 441916221 is about 761.6930291289.

The spelling of 441916221 in words is "four hundred forty-one million, nine hundred sixteen thousand, two hundred twenty-one".