444522219 has 8 divisors (see below), whose sum is σ = 618465792. Its totient is φ = 283463400.

The previous prime is 444522217. The next prime is 444522223. The reversal of 444522219 is 912225444.

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 444522219 - 2¹ = 444522217 is a prime.

It is a super-2 number, since 2×444522219² = 395200006369367922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 444522219.

It is not an unprimeable number, because it can be changed into a prime (444522217) 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, 3221107 + ... + 3221244.

It is an arithmetic number, because the mean of its divisors is an integer number (77308224).

Almost surely, 2^444522219 is an apocalyptic number.

444522219 is a deficient number, since it is larger than the sum of its proper divisors (173943573).

444522219 is a wasteful number, since it uses less digits than its factorization.

444522219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442377.

The product of its digits is 23040, while the sum is 33.

The square root of 444522219 is about 21083.6955726457. The cubic root of 444522219 is about 763.1873405933.

The spelling of 444522219 in words is "four hundred forty-four million, five hundred twenty-two thousand, two hundred nineteen".