8408445318 has 48 divisors (see below), whose sum is σ = 22422525216. Its totient is φ = 2217611520.

The previous prime is 8408445313. The next prime is 8408445347. The reversal of 8408445318 is 8135448048.

It is a super-2 number, since 2×8408445318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8408445313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2565043 + ... + 2568318.

It is an arithmetic number, because the mean of its divisors is an integer number (467135942).

Almost surely, 2^8408445318 is an apocalyptic number.

8408445318 is an abundant number, since it is smaller than the sum of its proper divisors (14014079898).

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

8408445318 is a wasteful number, since it uses less digits than its factorization.

8408445318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5133389 (or 5133386 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 8408445318 is about 91697.5753114552. The cubic root of 8408445318 is about 2033.4737386577.

The spelling of 8408445318 in words is "eight billion, four hundred eight million, four hundred forty-five thousand, three hundred eighteen".