8240072756 has 6 divisors (see below), whose sum is σ = 14420127330. Its totient is φ = 4120036376.

The previous prime is 8240072747. The next prime is 8240072767. The reversal of 8240072756 is 6572700428.

It can be written as a sum of positive squares in only one way, i.e., 6024864400 + 2215208356 = 77620^2 + 47066^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030009091 + ... + 1030009098.

It is an arithmetic number, because the mean of its divisors is an integer number (2403354555).

Almost surely, 2^8240072756 is an apocalyptic number.

It is an amenable number.

8240072756 is a deficient number, since it is larger than the sum of its proper divisors (6180054574).

8240072756 is a wasteful number, since it uses less digits than its factorization.

8240072756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060018193 (or 2060018191 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 8240072756 is about 90774.8464939490. The cubic root of 8240072756 is about 2019.8092127752.

The spelling of 8240072756 in words is "eight billion, two hundred forty million, seventy-two thousand, seven hundred fifty-six".