33028506 has 128 divisors (see below), whose sum is σ = 91238400. Its totient is φ = 8648640.

The previous prime is 33028481. The next prime is 33028507. The reversal of 33028506 is 60582033.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 33028506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33028507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 252061 + ... + 252191.

It is an arithmetic number, because the mean of its divisors is an integer number (712800).

Almost surely, 2^33028506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33028506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45619200).

33028506 is an abundant number, since it is smaller than the sum of its proper divisors (58209894).

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

33028506 is a wasteful number, since it uses less digits than its factorization.

33028506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 195 counting only the distinct ones).

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

The square root of 33028506 is about 5747.0432397886. The cubic root of 33028506 is about 320.8457639681.

The spelling of 33028506 in words is "thirty-three million, twenty-eight thousand, five hundred six".