8040808040 has 16 divisors (see below), whose sum is σ = 18091818180. Its totient is φ = 3216323200.

The previous prime is 8040808031. The next prime is 8040808049. The reversal of 8040808040 is 408080408.

It is an interprime number because it is at equal distance from previous prime (8040808031) and next prime (8040808049).

It can be written as a sum of positive squares in 2 ways, for example, as 7989856996 + 50951044 = 89386^2 + 7138^2 .

It is a super-2 number, since 2×8040808040² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8040807988 and 8040808006.

It is not an unprimeable number, because it can be changed into a prime (8040808049) 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, 100510061 + ... + 100510140.

Almost surely, 2^8040808040 is an apocalyptic number.

It is an amenable number.

8040808040 is an abundant number, since it is smaller than the sum of its proper divisors (10051010140).

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

8040808040 is a wasteful number, since it uses less digits than its factorization.

8040808040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201020212 (or 201020208 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 8040808040 is about 89670.5528030245. The cubic root of 8040808040 is about 2003.3949040526.

Adding to 8040808040 its reverse (408080408), we get a palindrome (8448888448).

The spelling of 8040808040 in words is "eight billion, forty million, eight hundred eight thousand, forty".