33013216 has 24 divisors (see below), whose sum is σ = 65132424. Its totient is φ = 16471680.

The previous prime is 33013199. The next prime is 33013217. The reversal of 33013216 is 61231033.

It is a junction number, because it is equal to n+sod(n) for n = 33013193 and 33013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33013217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21366 + ... + 22858.

It is an arithmetic number, because the mean of its divisors is an integer number (2713851).

Almost surely, 2^33013216 is an apocalyptic number.

It is an amenable number.

33013216 is a deficient number, since it is larger than the sum of its proper divisors (32119208).

33013216 is a wasteful number, since it uses less digits than its factorization.

33013216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2186 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 33013216 is about 5745.7128365417. The cubic root of 33013216 is about 320.7962462481.

Adding to 33013216 its reverse (61231033), we get a palindrome (94244249).

The spelling of 33013216 in words is "thirty-three million, thirteen thousand, two hundred sixteen".