33228866 has 16 divisors (see below), whose sum is σ = 54470880. Its totient is φ = 15077280.

The previous prime is 33228857. The next prime is 33228883. The reversal of 33228866 is 66882233.

It is a happy number.

It is a super-2 number, since 2×33228866² = 2208315071291912, which contains 22 as substring.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16865 + ... + 18731.

It is an arithmetic number, because the mean of its divisors is an integer number (3404430).

Almost surely, 2^33228866 is an apocalyptic number.

33228866 is a deficient number, since it is larger than the sum of its proper divisors (21242014).

33228866 is a wasteful number, since it uses less digits than its factorization.

33228866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2689.

The product of its digits is 82944, while the sum is 38.

The square root of 33228866 is about 5764.4484558369. The cubic root of 33228866 is about 321.4932360247.

The spelling of 33228866 in words is "thirty-three million, two hundred twenty-eight thousand, eight hundred sixty-six".