33285528 has 48 divisors (see below), whose sum is σ = 90862200. Its totient is φ = 11007360.

The previous prime is 33285521. The next prime is 33285529. The reversal of 33285528 is 82558233.

It is a super-2 number, since 2×33285528² = 2215852748477568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 33285492 and 33285501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33285521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7668 + ... + 11196.

Almost surely, 2^33285528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33285528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45431100).

33285528 is an abundant number, since it is smaller than the sum of its proper divisors (57576672).

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

33285528 is a wasteful number, since it uses less digits than its factorization.

33285528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672 (or 3665 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 33285528 is about 5769.3611431423. The cubic root of 33285528 is about 321.6758694543.

The spelling of 33285528 in words is "thirty-three million, two hundred eighty-five thousand, five hundred twenty-eight".