33204028 has 24 divisors (see below), whose sum is σ = 68266800. Its totient is φ = 13931520.

The previous prime is 33204011. The next prime is 33204029. The reversal of 33204028 is 82040233.

It is a super-2 number, since 2×33204028² = 2205014950849568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33204029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28453 + ... + 29596.

It is an arithmetic number, because the mean of its divisors is an integer number (2844450).

Almost surely, 2^33204028 is an apocalyptic number.

It is an amenable number.

33204028 is an abundant number, since it is smaller than the sum of its proper divisors (35062772).

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

33204028 is a wasteful number, since it uses less digits than its factorization.

33204028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58077 (or 58075 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 33204028 is about 5762.2936405567. The cubic root of 33204028 is about 321.4131125217.

The spelling of 33204028 in words is "thirty-three million, two hundred four thousand, twenty-eight".