8040768040 has 16 divisors (see below), whose sum is σ = 18091728180. Its totient is φ = 3216307200.

The previous prime is 8040768017. The next prime is 8040768041. The reversal of 8040768040 is 408670408.

It can be written as a sum of positive squares in 2 ways, for example, as 7022775204 + 1017992836 = 83802^2 + 31906^2 .

It is not an unprimeable number, because it can be changed into a prime (8040768041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100509561 + ... + 100509640.

Almost surely, 2^8040768040 is an apocalyptic number.

It is an amenable number.

8040768040 is an abundant number, since it is smaller than the sum of its proper divisors (10050960140).

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

8040768040 is a wasteful number, since it uses less digits than its factorization.

8040768040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201019212 (or 201019208 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 8040768040 is about 89670.3297640864. The cubic root of 8040768040 is about 2003.3915820014.

The spelling of 8040768040 in words is "eight billion, forty million, seven hundred sixty-eight thousand, forty".