822642260 has 48 divisors (see below), whose sum is σ = 1901333952. Its totient is φ = 296486400.

The previous prime is 822642241. The next prime is 822642263. The reversal of 822642260 is 62246228.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822642263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8315 + ... + 41405.

It is an arithmetic number, because the mean of its divisors is an integer number (39611124).

Almost surely, 2^822642260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822642260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (950666976).

822642260 is an abundant number, since it is smaller than the sum of its proper divisors (1078691692).

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

822642260 is a wasteful number, since it uses less digits than its factorization.

822642260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33224 (or 33222 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 822642260 is about 28681.7408816132. The cubic root of 822642260 is about 936.9944215618.

Adding to 822642260 its reverse (62246228), we get a palindrome (884888488).

The spelling of 822642260 in words is "eight hundred twenty-two million, six hundred forty-two thousand, two hundred sixty".