33985128 has 16 divisors (see below), whose sum is σ = 84962880. Its totient is φ = 11328368.

The previous prime is 33985111. The next prime is 33985139. The reversal of 33985128 is 82158933.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708000 + ... + 708047.

It is an arithmetic number, because the mean of its divisors is an integer number (5310180).

Almost surely, 2^33985128 is an apocalyptic number.

It is an amenable number.

33985128 is an abundant number, since it is smaller than the sum of its proper divisors (50977752).

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

33985128 is a wasteful number, since it uses less digits than its factorization.

33985128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416056 (or 1416052 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 33985128 is about 5829.6764918819. The cubic root of 33985128 is about 323.9139384286.

The spelling of 33985128 in words is "thirty-three million, nine hundred eighty-five thousand, one hundred twenty-eight".