33066538 has 8 divisors (see below), whose sum is σ = 49636800. Its totient is φ = 16520940.

The previous prime is 33066533. The next prime is 33066557. The reversal of 33066538 is 83566033.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (33066533) 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 3 ways as a sum of consecutive naturals, for example, 2338 + ... + 8461.

It is an arithmetic number, because the mean of its divisors is an integer number (6204600).

Almost surely, 2^33066538 is an apocalyptic number.

33066538 is a deficient number, since it is larger than the sum of its proper divisors (16570262).

33066538 is a wasteful number, since it uses less digits than its factorization.

33066538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12332.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 33066538 is about 5750.3511197143. The cubic root of 33066538 is about 320.9688669773.

The spelling of 33066538 in words is "thirty-three million, sixty-six thousand, five hundred thirty-eight".