822262220 has 48 divisors (see below), whose sum is σ = 1862064288. Its totient is φ = 303198720.

The previous prime is 822262163. The next prime is 822262247. The reversal of 822262220 is 22262228.

It is a super-2 number, since 2×822262220² = 1352230316878656800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 822262220.

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 15 ways as a sum of consecutive naturals, for example, 250832 + ... + 254088.

It is an arithmetic number, because the mean of its divisors is an integer number (38793006).

Almost surely, 2^822262220 is an apocalyptic number.

It is an amenable number.

822262220 is an abundant number, since it is smaller than the sum of its proper divisors (1039802068).

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

822262220 is a wasteful number, since it uses less digits than its factorization.

822262220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250 (or 4248 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 822262220 is about 28675.1149954102. The cubic root of 822262220 is about 936.8501100641.

The spelling of 822262220 in words is "eight hundred twenty-two million, two hundred sixty-two thousand, two hundred twenty".