822997420 has 24 divisors (see below), whose sum is σ = 1975194144. Its totient is φ = 282170496.

The previous prime is 822997411. The next prime is 822997433. The reversal of 822997420 is 24799228.

822997420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939137 + ... + 2939416.

It is an arithmetic number, because the mean of its divisors is an integer number (82299756).

Almost surely, 2^822997420 is an apocalyptic number.

It is an amenable number.

822997420 is an abundant number, since it is smaller than the sum of its proper divisors (1152196724).

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

822997420 is a wasteful number, since it uses less digits than its factorization.

822997420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5878569 (or 5878567 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 822997420 is about 28687.9316089536. The cubic root of 822997420 is about 937.1292452778.

The spelling of 822997420 in words is "eight hundred twenty-two million, nine hundred ninety-seven thousand, four hundred twenty".