2205798 has 32 divisors (see below), whose sum is σ = 5218560. Its totient is φ = 608160.

The previous prime is 2205793. The next prime is 2205799. The reversal of 2205798 is 8975022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205793) 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, 313 + ... + 2123.

It is an arithmetic number, because the mean of its divisors is an integer number (163080).

2^2205798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2205798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609280).

2205798 is an abundant number, since it is smaller than the sum of its proper divisors (3012762).

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

2205798 is a wasteful number, since it uses less digits than its factorization.

2205798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2205798 is about 1485.1929167620. The cubic root of 2205798 is about 130.1732994486.

It can be divided in two parts, 22057 and 98, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 2205798 in words is "two million, two hundred five thousand, seven hundred ninety-eight".