33056028 has 18 divisors (see below), whose sum is σ = 83558384. Its totient is φ = 11018664.

The previous prime is 33056021. The next prime is 33056039. The reversal of 33056028 is 82065033.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 33055992 and 33056010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33056021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 459076 + ... + 459147.

Almost surely, 2^33056028 is an apocalyptic number.

It is an amenable number.

33056028 is an abundant number, since it is smaller than the sum of its proper divisors (50502356).

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

33056028 is a wasteful number, since it uses less digits than its factorization.

33056028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918233 (or 918228 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 33056028 is about 5749.4371898474. The cubic root of 33056028 is about 320.9348573666.

The spelling of 33056028 in words is "thirty-three million, fifty-six thousand, twenty-eight".