22280806 has 16 divisors (see below), whose sum is σ = 35400960. Its totient is φ = 10487880.

The previous prime is 22280801. The next prime is 22280833. The reversal of 22280806 is 60808222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22280801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 8101.

It is an arithmetic number, because the mean of its divisors is an integer number (2212560).

Almost surely, 2^22280806 is an apocalyptic number.

22280806 is a deficient number, since it is larger than the sum of its proper divisors (13120154).

22280806 is a wasteful number, since it uses less digits than its factorization.

22280806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 22280806 is about 4720.2548660004. The cubic root of 22280806 is about 281.3910623405.

The spelling of 22280806 in words is "twenty-two million, two hundred eighty thousand, eight hundred six".