440000219 has 2 divisors, whose sum is σ = 440000220. Its totient is φ = 440000218.

The previous prime is 440000201. The next prime is 440000221. The reversal of 440000219 is 912000044.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440000219 is a prime.

It is a super-2 number, since 2×440000219² = 387200385440095922, which contains 22 as substring.

Together with 440000221, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440000219.

It is not a weakly prime, because it can be changed into another prime (440000269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220000109 + 220000110.

It is an arithmetic number, because the mean of its divisors is an integer number (220000110).

Almost surely, 2^440000219 is an apocalyptic number.

440000219 is a deficient number, since it is larger than the sum of its proper divisors (1).

440000219 is an equidigital number, since it uses as much as digits as its factorization.

440000219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 440000219 is about 20976.1821836101. The cubic root of 440000219 is about 760.5906183411.

The spelling of 440000219 in words is "four hundred forty million, two hundred nineteen", and thus it is an aban number.