22000866 has 16 divisors (see below), whose sum is σ = 45191424. Its totient is φ = 7135344.

The previous prime is 22000859. The next prime is 22000877. The reversal of 22000866 is 66800022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49330 + ... + 49773.

It is an arithmetic number, because the mean of its divisors is an integer number (2824464).

Almost surely, 2^22000866 is an apocalyptic number.

22000866 is an abundant number, since it is smaller than the sum of its proper divisors (23190558).

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

22000866 is a wasteful number, since it uses less digits than its factorization.

22000866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99145.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 22000866 is about 4690.5080748252. The cubic root of 22000866 is about 280.2076096325.

Adding to 22000866 its reverse (66800022), we get a palindrome (88800888).

The spelling of 22000866 in words is "twenty-two million, eight hundred sixty-six", and thus it is an aban number.