18060018 has 32 divisors (see below), whose sum is σ = 38905920. Its totient is φ = 5568000.

The previous prime is 18060017. The next prime is 18060023. The reversal of 18060018 is 81006081.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18060018.

It is not an unprimeable number, because it can be changed into a prime (18060017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4518 + ... + 7518.

It is an arithmetic number, because the mean of its divisors is an integer number (1215810).

Almost surely, 2^18060018 is an apocalyptic number.

18060018 is an abundant number, since it is smaller than the sum of its proper divisors (20845902).

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

18060018 is a wasteful number, since it uses less digits than its factorization.

18060018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 18060018 is about 4249.7079899683. The cubic root of 18060018 is about 262.3650971231.

Adding to 18060018 its reverse (81006081), we get a palindrome (99066099).

The spelling of 18060018 in words is "eighteen million, sixty thousand, eighteen".