444421442321 has 16 divisors (see below), whose sum is σ = 464237129280. Its totient is φ = 425018664000.

The previous prime is 444421442263. The next prime is 444421442341. The reversal of 444421442321 is 123244124444.

It is a cyclic number.

It is not a de Polignac number, because 444421442321 - 2¹⁰ = 444421441297 is a prime.

It is a super-3 number, since 3×444421442321³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (444421442341) 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 15 ways as a sum of consecutive naturals, for example, 22913990 + ... + 22933376.

It is an arithmetic number, because the mean of its divisors is an integer number (29014820580).

Almost surely, 2^444421442321 is an apocalyptic number.

It is an amenable number.

444421442321 is a deficient number, since it is larger than the sum of its proper divisors (19815686959).

444421442321 is a wasteful number, since it uses less digits than its factorization.

444421442321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29984.

The product of its digits is 98304, while the sum is 35.

Adding to 444421442321 its reverse (123244124444), we get a palindrome (567665566765).

The spelling of 444421442321 in words is "four hundred forty-four billion, four hundred twenty-one million, four hundred forty-two thousand, three hundred twenty-one".