33004040 has 16 divisors (see below), whose sum is σ = 74259180. Its totient is φ = 13201600.

The previous prime is 33004033. The next prime is 33004051. The reversal of 33004040 is 4040033.

It can be written as a sum of positive squares in 2 ways, for example, as 31967716 + 1036324 = 5654^2 + 1018^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 412511 + ... + 412590.

Almost surely, 2^33004040 is an apocalyptic number.

It is an amenable number.

33004040 is an abundant number, since it is smaller than the sum of its proper divisors (41255140).

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

33004040 is a wasteful number, since it uses less digits than its factorization.

33004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825112 (or 825108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 33004040 is about 5744.9142726415. The cubic root of 33004040 is about 320.7665217975.

Adding to 33004040 its reverse (4040033), we get a palindrome (37044073).

The spelling of 33004040 in words is "thirty-three million, four thousand, forty".