22250866 has 24 divisors (see below), whose sum is σ = 37345104. Its totient is φ = 9860760.

The previous prime is 22250863. The next prime is 22250887. The reversal of 22250866 is 66805222.

It is not an unprimeable number, because it can be changed into a prime (22250863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40405 + ... + 40951.

It is an arithmetic number, because the mean of its divisors is an integer number (1556046).

Almost surely, 2^22250866 is an apocalyptic number.

22250866 is a deficient number, since it is larger than the sum of its proper divisors (15094238).

22250866 is a wasteful number, since it uses less digits than its factorization.

22250866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 22250866 is about 4717.0823609515. The cubic root of 22250866 is about 281.2649653930.

The spelling of 22250866 in words is "twenty-two million, two hundred fifty thousand, eight hundred sixty-six".