22299666 has 16 divisors (see below), whose sum is σ = 46137600. Its totient is φ = 7176848.

The previous prime is 22299649. The next prime is 22299691. The reversal of 22299666 is 66699222.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a zygodrome in base 10.

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, 63906 + ... + 64253.

It is an arithmetic number, because the mean of its divisors is an integer number (2883600).

Almost surely, 2^22299666 is an apocalyptic number.

22299666 is an abundant number, since it is smaller than the sum of its proper divisors (23837934).

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

22299666 is a wasteful number, since it uses less digits than its factorization.

22299666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128193.

The product of its digits is 139968, while the sum is 42.

The square root of 22299666 is about 4722.2522168982. The cubic root of 22299666 is about 281.4704361706.

The spelling of 22299666 in words is "twenty-two million, two hundred ninety-nine thousand, six hundred sixty-six".