9018018 has 12 divisors (see below), whose sum is σ = 19539078. Its totient is φ = 3006000.

The previous prime is 9018013. The next prime is 9018019. The reversal of 9018018 is 8108109.

It can be written as a sum of positive squares in only one way, i.e., 9018009 + 9 = 3003^2 + 3^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9017982 and 9018000.

It is not an unprimeable number, because it can be changed into a prime (9018011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250483 + ... + 250518.

Almost surely, 2^9018018 is an apocalyptic number.

9018018 is an abundant number, since it is smaller than the sum of its proper divisors (10521060).

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

9018018 is a wasteful number, since it uses less digits than its factorization.

9018018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501009 (or 501006 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 9018018 is about 3003.0014985011. The cubic root of 9018018 is about 208.1471007020.

Subtracting from 9018018 its reverse (8108109), we obtain a palindrome (909909).

The spelling of 9018018 in words is "nine million, eighteen thousand, eighteen".