33809382 has 12 divisors (see below), whose sum is σ = 73253700. Its totient is φ = 11269788.

The previous prime is 33809371. The next prime is 33809383. The reversal of 33809382 is 28390833.

33809382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×33809382² = 2286148622443848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33809383) 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 5 ways as a sum of consecutive naturals, for example, 939132 + ... + 939167.

It is an arithmetic number, because the mean of its divisors is an integer number (6104475).

Almost surely, 2^33809382 is an apocalyptic number.

33809382 is an abundant number, since it is smaller than the sum of its proper divisors (39444318).

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

33809382 is a wasteful number, since it uses less digits than its factorization.

33809382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878307 (or 1878304 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 33809382 is about 5814.5835620447. The cubic root of 33809382 is about 323.3546252556.

It can be divided in two parts, 33809 and 382, that added together give a triangular number (34191 = T₂₆₁).

The spelling of 33809382 in words is "thirty-three million, eight hundred nine thousand, three hundred eighty-two".