444224431021 has 8 divisors (see below), whose sum is σ = 511560523584. Its totient is φ = 377857203360.

The previous prime is 444224431019. The next prime is 444224431037. The reversal of 444224431021 is 120134422444.

It is a happy number.

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

It is not a de Polignac number, because 444224431021 - 2¹ = 444224431019 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 (444224431081) 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, 242215240 + ... + 242217073.

It is an arithmetic number, because the mean of its divisors is an integer number (63945065448).

Almost surely, 2^444224431021 is an apocalyptic number.

It is an amenable number.

444224431021 is a deficient number, since it is larger than the sum of its proper divisors (67336092563).

444224431021 is a wasteful number, since it uses less digits than its factorization.

444224431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484432451.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 444224431021 its reverse (120134422444), we get a palindrome (564358853465).

The spelling of 444224431021 in words is "four hundred forty-four billion, two hundred twenty-four million, four hundred thirty-one thousand, twenty-one".