9918168 has 64 divisors (see below), whose sum is σ = 27095040. Its totient is φ = 3007104.

The previous prime is 9918163. The next prime is 9918169. The reversal of 9918168 is 8618199.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9918163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25705 + ... + 26087.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^9918168 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 9918168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13547520).

9918168 is an abundant number, since it is smaller than the sum of its proper divisors (17176872).

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

9918168 is a wasteful number, since it uses less digits than its factorization.

9918168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 484 counting only the distinct ones).

The product of its digits is 31104, while the sum is 42.

The square root of 9918168 is about 3149.3123058852. The cubic root of 9918168 is about 214.8541863303.

The spelling of 9918168 in words is "nine million, nine hundred eighteen thousand, one hundred sixty-eight".