450018 has 24 divisors (see below), whose sum is σ = 1018368. Its totient is φ = 143352.

The previous prime is 450011. The next prime is 450019. The reversal of 450018 is 810054.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (450011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130 + ... + 957.

It is an arithmetic number, because the mean of its divisors is an integer number (42432).

2⁴⁵⁰⁰¹⁸ is an apocalyptic number.

450018 is an abundant number, since it is smaller than the sum of its proper divisors (568350).

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

450018 is a wasteful number, since it uses less digits than its factorization.

450018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 450018 is about 670.8338095236. The cubic root of 450018 is about 76.6319649716.

The spelling of 450018 in words is "four hundred fifty thousand, eighteen".