22270866 has 16 divisors (see below), whose sum is σ = 44975424. Its totient is φ = 7351344.

The previous prime is 22270841. The next prime is 22270879. The reversal of 22270866 is 66807222.

It is a Curzon number.

It is an unprimeable number.

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, 17401 + ... + 18636.

It is an arithmetic number, because the mean of its divisors is an integer number (2810964).

Almost surely, 2^22270866 is an apocalyptic number.

22270866 is an abundant number, since it is smaller than the sum of its proper divisors (22704558).

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

22270866 is a wasteful number, since it uses less digits than its factorization.

22270866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36145.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 22270866 is about 4719.2018392944. The cubic root of 22270866 is about 281.3492110239.

The spelling of 22270866 in words is "twenty-two million, two hundred seventy thousand, eight hundred sixty-six".