18066284 has 6 divisors (see below), whose sum is σ = 31616004. Its totient is φ = 9033140.

The previous prime is 18066277. The next prime is 18066287. The reversal of 18066284 is 48266081.

It is not an unprimeable number, because it can be changed into a prime (18066287) 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 as a sum of consecutive naturals, namely, 2258282 + ... + 2258289.

It is an arithmetic number, because the mean of its divisors is an integer number (5269334).

Almost surely, 2^18066284 is an apocalyptic number.

It is an amenable number.

18066284 is a deficient number, since it is larger than the sum of its proper divisors (13549720).

18066284 is a wasteful number, since it uses less digits than its factorization.

18066284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516575 (or 4516573 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 18066284 is about 4250.4451531575. The cubic root of 18066284 is about 262.3954365097.

The spelling of 18066284 in words is "eighteen million, sixty-six thousand, two hundred eighty-four".