22206670 has 16 divisors (see below), whose sum is σ = 40536288. Its totient is φ = 8757280.

The previous prime is 22206643. The next prime is 22206671. The reversal of 22206670 is 7660222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22206671) 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 7 ways as a sum of consecutive naturals, for example, 14929 + ... + 16348.

It is an arithmetic number, because the mean of its divisors is an integer number (2533518).

Almost surely, 2^22206670 is an apocalyptic number.

22206670 is a deficient number, since it is larger than the sum of its proper divisors (18329618).

22206670 is a wasteful number, since it uses less digits than its factorization.

22206670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31355.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 22206670 is about 4712.3953569284. The cubic root of 22206670 is about 281.0786201999.

Adding to 22206670 its reverse (7660222), we get a palindrome (29866892).

The spelling of 22206670 in words is "twenty-two million, two hundred six thousand, six hundred seventy".