18033118 has 8 divisors (see below), whose sum is σ = 27171648. Its totient is φ = 8975904.

The previous prime is 18033083. The next prime is 18033133. The reversal of 18033118 is 81133081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18033092 and 18033101.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 19771 + ... + 20662.

It is an arithmetic number, because the mean of its divisors is an integer number (3396456).

Almost surely, 2^18033118 is an apocalyptic number.

18033118 is a deficient number, since it is larger than the sum of its proper divisors (9138530).

18033118 is a wasteful number, since it uses less digits than its factorization.

18033118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40658.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 18033118 is about 4246.5418872301. The cubic root of 18033118 is about 262.2347700460.

Adding to 18033118 its reverse (81133081), we get a palindrome (99166199).

The spelling of 18033118 in words is "eighteen million, thirty-three thousand, one hundred eighteen".