18033018 has 8 divisors (see below), whose sum is σ = 36066048. Its totient is φ = 6011004.

The previous prime is 18033017. The next prime is 18033047. The reversal of 18033018 is 81033081.

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

18033018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18033011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502746 + ... + 1502757.

It is an arithmetic number, because the mean of its divisors is an integer number (4508256).

Almost surely, 2^18033018 is an apocalyptic number.

18033018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18033018 is a wasteful number, since it uses less digits than its factorization.

18033018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005508.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 18033018 is about 4246.5301129275. The cubic root of 18033018 is about 262.2342853170.

Adding to 18033018 its reverse (81033081), we get a palindrome (99066099).

The spelling of 18033018 in words is "eighteen million, thirty-three thousand, eighteen".