4218018 has 24 divisors (see below), whose sum is σ = 9814032. Its totient is φ = 1205064.

The previous prime is 4218007. The next prime is 4218031. The reversal of 4218018 is 8108124.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6880 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (408918).

Almost surely, 2^4218018 is an apocalyptic number.

4218018 is an abundant number, since it is smaller than the sum of its proper divisors (5596014).

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

4218018 is a wasteful number, since it uses less digits than its factorization.

4218018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14366 (or 14359 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 4218018 is about 2053.7813905087. The cubic root of 4218018 is about 161.5732557529.

The spelling of 4218018 in words is "four million, two hundred eighteen thousand, eighteen".