2203020018 has 96 divisors (see below), whose sum is σ = 5238455040. Its totient is φ = 691966800.

The previous prime is 2203019993. The next prime is 2203020019. The reversal of 2203020018 is 8100203022.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (2203020019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2095593 + ... + 2096643.

It is an arithmetic number, because the mean of its divisors is an integer number (54567240).

Almost surely, 2^2203020018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2203020018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2619227520).

2203020018 is an abundant number, since it is smaller than the sum of its proper divisors (3035435022).

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

2203020018 is a wasteful number, since it uses less digits than its factorization.

2203020018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2203020018 is about 46936.3400575716. The cubic root of 2203020018 is about 1301.1862974072.

The spelling of 2203020018 in words is "two billion, two hundred three million, twenty thousand, eighteen".