9918404 has 12 divisors (see below), whose sum is σ = 17379264. Its totient is φ = 4952904.

The previous prime is 9918383. The next prime is 9918407. The reversal of 9918404 is 4048199.

It is not an unprimeable number, because it can be changed into a prime (9918407) 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 3 ways as a sum of consecutive naturals, for example, 5369 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (1448272).

Almost surely, 2^9918404 is an apocalyptic number.

It is an amenable number.

9918404 is a deficient number, since it is larger than the sum of its proper divisors (7460860).

9918404 is a wasteful number, since it uses less digits than its factorization.

9918404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154 (or 3152 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 9918404 is about 3149.3497741597. The cubic root of 9918404 is about 214.8558904483.

The spelling of 9918404 in words is "nine million, nine hundred eighteen thousand, four hundred four".