33040436 has 48 divisors (see below), whose sum is σ = 69431040. Its totient is φ = 13557120.

The previous prime is 33040429. The next prime is 33040459. The reversal of 33040436 is 63404033.

It is a super-2 number, since 2×33040436² = 2183340822140192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26270 + ... + 27498.

It is an arithmetic number, because the mean of its divisors is an integer number (1446480).

Almost surely, 2^33040436 is an apocalyptic number.

It is an amenable number.

33040436 is an abundant number, since it is smaller than the sum of its proper divisors (36390604).

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

33040436 is a wasteful number, since it uses less digits than its factorization.

33040436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 33040436 is about 5748.0810711054. The cubic root of 33040436 is about 320.8843894834.

Adding to 33040436 its reverse (63404033), we get a palindrome (96444469).

The spelling of 33040436 in words is "thirty-three million, forty thousand, four hundred thirty-six".