822824840 has 32 divisors (see below), whose sum is σ = 1852200000. Its totient is φ = 328979904.

The previous prime is 822824819. The next prime is 822824857. The reversal of 822824840 is 48428228.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 822824794 and 822824803.

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, 137021 + ... + 142899.

It is an arithmetic number, because the mean of its divisors is an integer number (57881250).

Almost surely, 2^822824840 is an apocalyptic number.

It is an amenable number.

822824840 is an abundant number, since it is smaller than the sum of its proper divisors (1029375160).

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

822824840 is a wasteful number, since it uses less digits than its factorization.

822824840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9389 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 38.

The square root of 822824840 is about 28684.9235662220. The cubic root of 822824840 is about 937.0637363356.

The spelling of 822824840 in words is "eight hundred twenty-two million, eight hundred twenty-four thousand, eight hundred forty".