822140930 has 32 divisors (see below), whose sum is σ = 1595241648. Its totient is φ = 303264000.

The previous prime is 822140881. The next prime is 822140933. The reversal of 822140930 is 39041228.

It is a Cunningham number, because it is equal to 28673²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 121638841 + 700502089 = 11029^2 + 26467^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 822140893 and 822140902.

It is not an unprimeable number, because it can be changed into a prime (822140933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166700 + ... + 171560.

Almost surely, 2^822140930 is an apocalyptic number.

822140930 is a deficient number, since it is larger than the sum of its proper divisors (773100718).

822140930 is a wasteful number, since it uses less digits than its factorization.

822140930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 822140930 is about 28673.0000174380. Note that the first 4 decimals coincide. The cubic root of 822140930 is about 936.8040436007.

The spelling of 822140930 in words is "eight hundred twenty-two million, one hundred forty thousand, nine hundred thirty".