822504140 has 24 divisors (see below), whose sum is σ = 1750922880. Its totient is φ = 324494208.

The previous prime is 822504103. The next prime is 822504161. The reversal of 822504140 is 41405228.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 280220 + ... + 283139.

It is an arithmetic number, because the mean of its divisors is an integer number (72955120).

Almost surely, 2^822504140 is an apocalyptic number.

It is an amenable number.

822504140 is an abundant number, since it is smaller than the sum of its proper divisors (928418740).

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

822504140 is a wasteful number, since it uses less digits than its factorization.

822504140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563441 (or 563439 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 822504140 is about 28679.3329769017. The cubic root of 822504140 is about 936.9419787931.

Adding to 822504140 its reverse (41405228), we get a palindrome (863909368).

The spelling of 822504140 in words is "eight hundred twenty-two million, five hundred four thousand, one hundred forty".