8408840408040 has 64 divisors (see below), whose sum is σ = 25229417644800. Its totient is φ = 2242099982592.

The previous prime is 8408840407949. The next prime is 8408840408053. The reversal of 8408840408040 is 408040488048.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2972167 + ... + 5064726.

It is an arithmetic number, because the mean of its divisors is an integer number (394209650700).

Almost surely, 2^{8408840408040} is an apocalyptic number.

It is an amenable number.

8408840408040 is an abundant number, since it is smaller than the sum of its proper divisors (16820577236760).

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

8408840408040 is a wasteful number, since it uses less digits than its factorization.

8408840408040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045626 (or 8045622 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 48.

The spelling of 8408840408040 in words is "eight trillion, four hundred eight billion, eight hundred forty million, four hundred eight thousand, forty".