822042019 has 2 divisors, whose sum is σ = 822042020. Its totient is φ = 822042018.

The previous prime is 822042007. The next prime is 822042029. The reversal of 822042019 is 910240228.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-822042019 is a prime.

It is a super-2 number, since 2×822042019² = 1351506162003192722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (822042029) 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, 411021009 + 411021010.

It is an arithmetic number, because the mean of its divisors is an integer number (411021010).

Almost surely, 2^822042019 is an apocalyptic number.

822042019 is a deficient number, since it is larger than the sum of its proper divisors (1).

822042019 is an equidigital number, since it uses as much as digits as its factorization.

822042019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 822042019 is about 28671.2751547607. The cubic root of 822042019 is about 936.7664734236.

The spelling of 822042019 in words is "eight hundred twenty-two million, forty-two thousand, nineteen".