2018506 has 24 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 843192.

The previous prime is 2018483. The next prime is 2018507. The reversal of 2018506 is 6058102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2018507) 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, 3975 + ... + 4453.

It is an arithmetic number, because the mean of its divisors is an integer number (150480).

2^2018506 is an apocalyptic number.

2018506 is a deficient number, since it is larger than the sum of its proper divisors (1593014).

2018506 is a wasteful number, since it uses less digits than its factorization.

2018506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2018506 is about 1420.7413557717. The cubic root of 2018506 is about 126.3795141852.

The spelling of 2018506 in words is "two million, eighteen thousand, five hundred six".