33075728 has 20 divisors (see below), whose sum is σ = 73239360. Its totient is φ = 14175264.

The previous prime is 33075701. The next prime is 33075737. The reversal of 33075728 is 82757033.

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 3 ways as a sum of consecutive naturals, for example, 147548 + ... + 147771.

It is an arithmetic number, because the mean of its divisors is an integer number (3661968).

Almost surely, 2^33075728 is an apocalyptic number.

It is an amenable number.

33075728 is an abundant number, since it is smaller than the sum of its proper divisors (40163632).

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

33075728 is a wasteful number, since it uses less digits than its factorization.

33075728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295334 (or 295328 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 33075728 is about 5751.1501458404. The cubic root of 33075728 is about 320.9985992570.

The spelling of 33075728 in words is "thirty-three million, seventy-five thousand, seven hundred twenty-eight".