444413310221 has 8 divisors (see below), whose sum is σ = 445753345440. Its totient is φ = 443074384368.

The previous prime is 444413310197. The next prime is 444413310281. The reversal of 444413310221 is 122013314444.

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

It is a cyclic number.

It is not a de Polignac number, because 444413310221 - 2¹⁸ = 444413048077 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 (444413310281) 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, 528590 + ... + 1080848.

It is an arithmetic number, because the mean of its divisors is an integer number (55719168180).

Almost surely, 2^444413310221 is an apocalyptic number.

It is an amenable number.

444413310221 is a deficient number, since it is larger than the sum of its proper divisors (1340035219).

444413310221 is a wasteful number, since it uses less digits than its factorization.

444413310221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554683.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 444413310221 its reverse (122013314444), we get a palindrome (566426624665).

The spelling of 444413310221 in words is "four hundred forty-four billion, four hundred thirteen million, three hundred ten thousand, two hundred twenty-one".