33085812 has 12 divisors (see below), whose sum is σ = 77200256. Its totient is φ = 11028600.

The previous prime is 33085747. The next prime is 33085817. The reversal of 33085812 is 21858033.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 33085812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33085817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378564 + ... + 1378587.

Almost surely, 2^33085812 is an apocalyptic number.

It is an amenable number.

33085812 is an abundant number, since it is smaller than the sum of its proper divisors (44114444).

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

33085812 is a wasteful number, since it uses less digits than its factorization.

33085812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757158 (or 2757156 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 33085812 is about 5752.0267732339. The cubic root of 33085812 is about 321.0312175461.

The spelling of 33085812 in words is "thirty-three million, eighty-five thousand, eight hundred twelve".