8020840072 has 32 divisors (see below), whose sum is σ = 17217371520. Its totient is φ = 3431531520.

The previous prime is 8020840049. The next prime is 8020840073. The reversal of 8020840072 is 2700480208.

It is not an unprimeable number, because it can be changed into a prime (8020840073) 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, 91804 + ... + 156427.

It is an arithmetic number, because the mean of its divisors is an integer number (538042860).

Almost surely, 2^8020840072 is an apocalyptic number.

It is an amenable number.

8020840072 is an abundant number, since it is smaller than the sum of its proper divisors (9196531448).

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

8020840072 is a wasteful number, since it uses less digits than its factorization.

8020840072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248821 (or 248817 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 8020840072 is about 89559.1428721825. The cubic root of 8020840072 is about 2001.7351668293.

The spelling of 8020840072 in words is "eight billion, twenty million, eight hundred forty thousand, seventy-two".