822270 has 16 divisors (see below), whose sum is σ = 1973520. Its totient is φ = 219264.

The previous prime is 822259. The next prime is 822277. The reversal of 822270 is 72228.

It is a super-2 number, since 2×822270² = 1352255905800, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 822270.

It is not an unprimeable number, because it can be changed into a prime (822277) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13675 + ... + 13734.

It is an arithmetic number, because the mean of its divisors is an integer number (123345).

2⁸²²²⁷⁰ is an apocalyptic number.

822270 is an abundant number, since it is smaller than the sum of its proper divisors (1151250).

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

822270 is a wasteful number, since it uses less digits than its factorization.

822270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27419.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 822270 is about 906.7910453903. The cubic root of 822270 is about 93.6853064787.

Adding to 822270 its reverse (72228), we get a palindrome (894498).

The spelling of 822270 in words is "eight hundred twenty-two thousand, two hundred seventy".