444142219 has 2 divisors, whose sum is σ = 444142220. Its totient is φ = 444142218.

The previous prime is 444142201. The next prime is 444142247. The reversal of 444142219 is 912241444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444142219 - 2¹⁷ = 444011147 is a prime.

It is a super-2 number, since 2×444142219² = 394524621396487922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444142249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222071109 + 222071110.

It is an arithmetic number, because the mean of its divisors is an integer number (222071110).

Almost surely, 2^444142219 is an apocalyptic number.

444142219 is a deficient number, since it is larger than the sum of its proper divisors (1).

444142219 is an equidigital number, since it uses as much as digits as its factorization.

444142219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 444142219 is about 21074.6819430330. The cubic root of 444142219 is about 762.9698082593.

The spelling of 444142219 in words is "four hundred forty-four million, one hundred forty-two thousand, two hundred nineteen".