12118284 has 36 divisors (see below), whose sum is σ = 31027360. Its totient is φ = 3987360.

The previous prime is 12118279. The next prime is 12118313. The reversal of 12118284 is 48281121.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714 + ... + 4974.

Almost surely, 2^12118284 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 12118284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15513680).

12118284 is an abundant number, since it is smaller than the sum of its proper divisors (18909076).

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

12118284 is a wasteful number, since it uses less digits than its factorization.

12118284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350 (or 4345 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 12118284 is about 3481.1325743212. The cubic root of 12118284 is about 229.6926202663.

The spelling of 12118284 in words is "twelve million, one hundred eighteen thousand, two hundred eighty-four".