8306722820 has 24 divisors (see below), whose sum is σ = 19029947328. Its totient is φ = 3020626400.

The previous prime is 8306722819. The next prime is 8306722829. The reversal of 8306722820 is 282276038.

It is not an unprimeable number, because it can be changed into a prime (8306722829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18878696 + ... + 18879135.

It is an arithmetic number, because the mean of its divisors is an integer number (792914472).

Almost surely, 2^8306722820 is an apocalyptic number.

It is an amenable number.

8306722820 is an abundant number, since it is smaller than the sum of its proper divisors (10723224508).

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

8306722820 is a wasteful number, since it uses less digits than its factorization.

8306722820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37757851 (or 37757849 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 8306722820 is about 91141.2245912902. The cubic root of 8306722820 is about 2025.2403571833.

Adding to 8306722820 its reverse (282276038), we get a palindrome (8588998858).

The spelling of 8306722820 in words is "eight billion, three hundred six million, seven hundred twenty-two thousand, eight hundred twenty".