33004243 has 4 divisors (see below), whose sum is σ = 34068928. Its totient is φ = 31939560.

The previous prime is 33004229. The next prime is 33004247. The reversal of 33004243 is 34240033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34240033 = 19 ⋅1802107.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33004243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33004243.

It is not an unprimeable number, because it can be changed into a prime (33004247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532296 + ... + 532357.

It is an arithmetic number, because the mean of its divisors is an integer number (8517232).

Almost surely, 2^33004243 is an apocalyptic number.

33004243 is a deficient number, since it is larger than the sum of its proper divisors (1064685).

33004243 is a wasteful number, since it uses less digits than its factorization.

33004243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064684.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 33004243 is about 5744.9319404150. The cubic root of 33004243 is about 320.7671794490.

Adding to 33004243 its reverse (34240033), we get a palindrome (67244276).

The spelling of 33004243 in words is "thirty-three million, four thousand, two hundred forty-three".