33223866 has 32 divisors (see below), whose sum is σ = 71886528. Its totient is φ = 10176000.

The previous prime is 33223859. The next prime is 33223867. The reversal of 33223866 is 66832233.

It is a super-2 number, since 2×33223866² = 2207650543971912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33223867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18730 + ... + 20426.

It is an arithmetic number, because the mean of its divisors is an integer number (2246454).

Almost surely, 2^33223866 is an apocalyptic number.

33223866 is an abundant number, since it is smaller than the sum of its proper divisors (38662662).

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

33223866 is a wasteful number, since it uses less digits than its factorization.

33223866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966.

The product of its digits is 31104, while the sum is 33.

The square root of 33223866 is about 5764.0147466848. The cubic root of 33223866 is about 321.4771100173.

The spelling of 33223866 in words is "thirty-three million, two hundred twenty-three thousand, eight hundred sixty-six".