33204321 has 12 divisors (see below), whose sum is σ = 48232080. Its totient is φ = 22011480.

The previous prime is 33204307. The next prime is 33204323. The reversal of 33204321 is 12340233.

It is not a de Polignac number, because 33204321 - 2⁵ = 33204289 is a prime.

It is a super-2 number, since 2×33204321² = 2205053866142082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33204294 and 33204303.

It is not an unprimeable number, because it can be changed into a prime (33204323) 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 11 ways as a sum of consecutive naturals, for example, 8695 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (4019340).

Almost surely, 2^33204321 is an apocalyptic number.

It is an amenable number.

33204321 is a deficient number, since it is larger than the sum of its proper divisors (15027759).

33204321 is a wasteful number, since it uses less digits than its factorization.

33204321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20796 (or 20793 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33204321 is about 5762.3190644045. The cubic root of 33204321 is about 321.4140579267.

Adding to 33204321 its reverse (12340233), we get a palindrome (45544554).

The spelling of 33204321 in words is "thirty-three million, two hundred four thousand, three hundred twenty-one".