2205198 has 32 divisors (see below), whose sum is σ = 4962720. Its totient is φ = 725760.

The previous prime is 2205187. The next prime is 2205199. The reversal of 2205198 is 8915022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5028 + ... + 5448.

It is an arithmetic number, because the mean of its divisors is an integer number (155085).

2^2205198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2481360).

2205198 is an abundant number, since it is smaller than the sum of its proper divisors (2757522).

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

2205198 is a wasteful number, since it uses less digits than its factorization.

2205198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2205198 is about 1484.9909090631. The cubic root of 2205198 is about 130.1614955478.

Adding to 2205198 its sum of digits (27), we get a square (2205225 = 1485²).

The spelling of 2205198 in words is "two million, two hundred five thousand, one hundred ninety-eight".