8220756260 has 24 divisors (see below), whose sum is σ = 17287170936. Its totient is φ = 3283810560.

The previous prime is 8220756259. The next prime is 8220756307. The reversal of 8220756260 is 626570228.

It can be written as a sum of positive squares in 4 ways, for example, as 5199275236 + 3021481024 = 72106^2 + 54968^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265721 + ... + 295040.

It is an arithmetic number, because the mean of its divisors is an integer number (720298789).

Almost surely, 2^8220756260 is an apocalyptic number.

It is an amenable number.

8220756260 is an abundant number, since it is smaller than the sum of its proper divisors (9066414676).

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

8220756260 is a wasteful number, since it uses less digits than its factorization.

8220756260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561503 (or 561501 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 8220756260 is about 90668.3862214388. The cubic root of 8220756260 is about 2018.2296893695.

The spelling of 8220756260 in words is "eight billion, two hundred twenty million, seven hundred fifty-six thousand, two hundred sixty".