8918840080 has 40 divisors (see below), whose sum is σ = 20778973632. Its totient is φ = 3560194944.

The previous prime is 8918840069. The next prime is 8918840083. The reversal of 8918840080 is 800488198.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×8918840080² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8918840080.

It is not an unprimeable number, because it can be changed into a prime (8918840083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75502 + ... + 153421.

Almost surely, 2^8918840080 is an apocalyptic number.

8918840080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8918840080 is an abundant number, since it is smaller than the sum of its proper divisors (11860133552).

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

8918840080 is a wasteful number, since it uses less digits than its factorization.

8918840080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229423 (or 229417 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The square root of 8918840080 is about 94439.6107573512. The cubic root of 8918840080 is about 2073.8123618452.

The spelling of 8918840080 in words is "eight billion, nine hundred eighteen million, eight hundred forty thousand, eighty".