444302322021 has 12 divisors (see below), whose sum is σ = 641776205772. Its totient is φ = 296198693376.

The previous prime is 444302322017. The next prime is 444302322059. The reversal of 444302322021 is 120223203444.

444302322021 is a `hidden beast` number, since 4 + 4 + 430 + 2 + 3 + 220 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 327768845121 + 116533476900 = 572511^2 + 341370^2 .

It is not a de Polignac number, because 444302322021 - 2² = 444302322017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444302322001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1214635 + ... + 1537511.

It is an arithmetic number, because the mean of its divisors is an integer number (53481350481).

Almost surely, 2^444302322021 is an apocalyptic number.

It is an amenable number.

444302322021 is a deficient number, since it is larger than the sum of its proper divisors (197473883751).

444302322021 is a wasteful number, since it uses less digits than its factorization.

444302322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475780 (or 475777 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 444302322021 its reverse (120223203444), we get a palindrome (564525525465).

The spelling of 444302322021 in words is "four hundred forty-four billion, three hundred two million, three hundred twenty-two thousand, twenty-one".