9918930 has 64 divisors (see below), whose sum is σ = 27475200. Its totient is φ = 2244864.

The previous prime is 9918917. The next prime is 9918941. The reversal of 9918930 is 398199.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 31132 + ... + 31448.

It is an arithmetic number, because the mean of its divisors is an integer number (429300).

Almost surely, 2^9918930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9918930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13737600).

9918930 is an abundant number, since it is smaller than the sum of its proper divisors (17556270).

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

9918930 is a wasteful number, since it uses less digits than its factorization.

9918930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 9918930 is about 3149.4332823541. The cubic root of 9918930 is about 214.8596885123.

The spelling of 9918930 in words is "nine million, nine hundred eighteen thousand, nine hundred thirty".