240018 has 16 divisors (see below), whose sum is σ = 485760. Its totient is φ = 79056.

The previous prime is 240017. The next prime is 240041. The reversal of 240018 is 810042.

240018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 239979 and 240006.

It is not an unprimeable number, because it can be changed into a prime (240011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471 + ... + 837.

It is an arithmetic number, because the mean of its divisors is an integer number (30360).

2²⁴⁰⁰¹⁸ is an apocalyptic number.

240018 is an abundant number, since it is smaller than the sum of its proper divisors (245742).

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

240018 is a wasteful number, since it uses less digits than its factorization.

240018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 240018 is about 489.9163193853. The cubic root of 240018 is about 62.1462036965.

The spelling of 240018 in words is "two hundred forty thousand, eighteen".