33013236 has 12 divisors (see below), whose sum is σ = 77030912. Its totient is φ = 11004408.

The previous prime is 33013217. The next prime is 33013247. The reversal of 33013236 is 63231033.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375540 + ... + 1375563.

Almost surely, 2^33013236 is an apocalyptic number.

It is an amenable number.

33013236 is an abundant number, since it is smaller than the sum of its proper divisors (44017676).

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

33013236 is a wasteful number, since it uses less digits than its factorization.

33013236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751110 (or 2751108 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 33013236 is about 5745.7145769695. The cubic root of 33013236 is about 320.7963110294.

Adding to 33013236 its reverse (63231033), we get a palindrome (96244269).

The spelling of 33013236 in words is "thirty-three million, thirteen thousand, two hundred thirty-six".