822267816 has 16 divisors (see below), whose sum is σ = 2055669600. Its totient is φ = 274089264.

The previous prime is 822267793. The next prime is 822267869. The reversal of 822267816 is 618762228.

It is a happy number.

It is a super-2 number, since 2×822267816² = 1352248722458819712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17130556 + ... + 17130603.

It is an arithmetic number, because the mean of its divisors is an integer number (128479350).

Almost surely, 2^822267816 is an apocalyptic number.

It is an amenable number.

822267816 is an abundant number, since it is smaller than the sum of its proper divisors (1233401784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

822267816 is a wasteful number, since it uses less digits than its factorization.

822267816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34261168 (or 34261164 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 822267816 is about 28675.2125711389. The cubic root of 822267816 is about 936.8522353396.

The spelling of 822267816 in words is "eight hundred twenty-two million, two hundred sixty-seven thousand, eight hundred sixteen".