444922321 has 8 divisors (see below), whose sum is σ = 462655080. Its totient is φ = 427348992.

The previous prime is 444922307. The next prime is 444922339. The reversal of 444922321 is 123229444.

It can be written as a sum of positive squares in 4 ways, for example, as 100300225 + 344622096 = 10015^2 + 18564^2 .

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 444922321 - 2⁹ = 444921809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444922421) 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, 34150 + ... + 45343.

It is an arithmetic number, because the mean of its divisors is an integer number (57831885).

Almost surely, 2^444922321 is an apocalyptic number.

It is an amenable number.

444922321 is a deficient number, since it is larger than the sum of its proper divisors (17732759).

444922321 is a wasteful number, since it uses less digits than its factorization.

444922321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79715.

The product of its digits is 13824, while the sum is 31.

The square root of 444922321 is about 21093.1818604970. The cubic root of 444922321 is about 763.4162464469.

The spelling of 444922321 in words is "four hundred forty-four million, nine hundred twenty-two thousand, three hundred twenty-one".