444422224397 has 4 divisors (see below), whose sum is σ = 458758425216. Its totient is φ = 430086023580.

The previous prime is 444422224387. The next prime is 444422224403. The reversal of 444422224397 is 793422224444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 444422224397 - 2²² = 444418030093 is a prime.

It is a super-3 number, since 3×444422224397³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444422224357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7168100363 + ... + 7168100424.

It is an arithmetic number, because the mean of its divisors is an integer number (114689606304).

Almost surely, 2^444422224397 is an apocalyptic number.

It is an amenable number.

444422224397 is a deficient number, since it is larger than the sum of its proper divisors (14336200819).

444422224397 is a wasteful number, since it uses less digits than its factorization.

444422224397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14336200818.

The product of its digits is 3096576, while the sum is 47.

Adding to 444422224397 its sum of digits (47), we get a palindrome (444422224444).

The spelling of 444422224397 in words is "four hundred forty-four billion, four hundred twenty-two million, two hundred twenty-four thousand, three hundred ninety-seven".