18284068 has 36 divisors (see below), whose sum is σ = 36156316. Its totient is φ = 8078400.

The previous prime is 18284059. The next prime is 18284093. The reversal of 18284068 is 86048281.

It can be written as a sum of positive squares in 2 ways, for example, as 13823524 + 4460544 = 3718^2 + 2112^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

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 11 ways as a sum of consecutive naturals, for example, 17398 + ... + 18418.

Almost surely, 2^18284068 is an apocalyptic number.

It is an amenable number.

18284068 is a deficient number, since it is larger than the sum of its proper divisors (17872248).

18284068 is a wasteful number, since it uses less digits than its factorization.

18284068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 18284068 is about 4275.9873713565. The cubic root of 18284068 is about 263.4455958167.

The spelling of 18284068 in words is "eighteen million, two hundred eighty-four thousand, sixty-eight".