2220018 has 8 divisors (see below), whose sum is σ = 4440048. Its totient is φ = 740004.

The previous prime is 2220007. The next prime is 2220041. The reversal of 2220018 is 8100222.

It is a sphenic number, since it is the product of 3 distinct primes.

2220018 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2219979 and 2220006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184996 + ... + 185007.

It is an arithmetic number, because the mean of its divisors is an integer number (555006).

2^2220018 is an apocalyptic number.

2220018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2220018 is a wasteful number, since it uses less digits than its factorization.

2220018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370008.

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

The square root of 2220018 is about 1489.9724829674. The cubic root of 2220018 is about 130.4524275743.

The spelling of 2220018 in words is "two million, two hundred twenty thousand, eighteen".