9918880224 has 96 divisors (see below), whose sum is σ = 28680148224. Its totient is φ = 2976506880.

The previous prime is 9918880171. The next prime is 9918880229. The reversal of 9918880224 is 4220888199.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9918880229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63172 + ... + 154364.

It is an arithmetic number, because the mean of its divisors is an integer number (298751544).

Almost surely, 2^9918880224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9918880224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14340074112).

9918880224 is an abundant number, since it is smaller than the sum of its proper divisors (18761268000).

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

9918880224 is a wasteful number, since it uses less digits than its factorization.

9918880224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91320 (or 91312 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 9918880224 is about 99593.5752144685. The cubic root of 9918880224 is about 2148.5932910279.

The spelling of 9918880224 in words is "nine billion, nine hundred eighteen million, eight hundred eighty thousand, two hundred twenty-four".