2202018 has 64 divisors (see below), whose sum is σ = 5617920. Its totient is φ = 559872.

The previous prime is 2202007. The next prime is 2202019. The reversal of 2202018 is 8102022.

It is a junction number, because it is equal to n+sod(n) for n = 2201988 and 2202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20148 + ... + 20256.

It is an arithmetic number, because the mean of its divisors is an integer number (87780).

2^2202018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2202018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2808960).

2202018 is an abundant number, since it is smaller than the sum of its proper divisors (3415902).

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

2202018 is a wasteful number, since it uses less digits than its factorization.

2202018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

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

The square root of 2202018 is about 1483.9198091541. The cubic root of 2202018 is about 130.0988991012.

The spelling of 2202018 in words is "two million, two hundred two thousand, eighteen".