2270205 has 24 divisors (see below), whose sum is σ = 4497792. Its totient is φ = 1037664.

The previous prime is 2270201. The next prime is 2270239. The reversal of 2270205 is 5020722.

It is a happy number.

It is not a de Polignac number, because 2270205 - 2² = 2270201 is a prime.

2270205 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2270201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3289 + ... + 3918.

It is an arithmetic number, because the mean of its divisors is an integer number (187408).

2^2270205 is an apocalyptic number.

It is an amenable number.

2270205 is a deficient number, since it is larger than the sum of its proper divisors (2227587).

2270205 is a wasteful number, since it uses less digits than its factorization.

2270205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7225 (or 7222 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2270205 is about 1506.7199474355. The cubic root of 2270205 is about 131.4281390638.

Adding to 2270205 its reverse (5020722), we get a palindrome (7290927).

The spelling of 2270205 in words is "two million, two hundred seventy thousand, two hundred five".