918018 has 12 divisors (see below), whose sum is σ = 1989078. Its totient is φ = 306000.

The previous prime is 918011. The next prime is 918019. The reversal of 918018 is 810819.

It can be written as a sum of positive squares in only one way, i.e., 660969 + 257049 = 813^2 + 507^2 .

It is a junction number, because it is equal to n+sod(n) for n = 917982 and 918000.

It is not an unprimeable number, because it can be changed into a prime (918011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25483 + ... + 25518.

2⁹¹⁸⁰¹⁸ is an apocalyptic number.

918018 is an abundant number, since it is smaller than the sum of its proper divisors (1071060).

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

918018 is a wasteful number, since it uses less digits than its factorization.

918018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51009 (or 51006 counting only the distinct ones).

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

The square root of 918018 is about 958.1325586786. The cubic root of 918018 is about 97.1889892522.

It can be divided in two parts, 91801 and 8, that added together give a square (91809 = 303²).

The spelling of 918018 in words is "nine hundred eighteen thousand, eighteen".