22606205 has 4 divisors (see below), whose sum is σ = 27127452. Its totient is φ = 18084960.

The previous prime is 22606189. The next prime is 22606231. The reversal of 22606205 is 50260622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3193369 + 19412836 = 1787^2 + 4406^2 .

It is not a de Polignac number, because 22606205 - 2⁴ = 22606189 is a prime.

It is a super-2 number, since 2×22606205² = 1022081009004050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2260616 + ... + 2260625.

It is an arithmetic number, because the mean of its divisors is an integer number (6781863).

Almost surely, 2^22606205 is an apocalyptic number.

It is an amenable number.

22606205 is a deficient number, since it is larger than the sum of its proper divisors (4521247).

22606205 is an equidigital number, since it uses as much as digits as its factorization.

22606205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4521246.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22606205 is about 4754.5983005928. The cubic root of 22606205 is about 282.7543015171.

Adding to 22606205 its reverse (50260622), we get a palindrome (72866827).

The spelling of 22606205 in words is "twenty-two million, six hundred six thousand, two hundred five".