33620216 has 16 divisors (see below), whose sum is σ = 72043440. Its totient is φ = 14408640.

The previous prime is 33620201. The next prime is 33620221. The reversal of 33620216 is 61202633.

It is a super-2 number, since 2×33620216² = 2260637847773312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33620191 and 33620200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300125 + ... + 300236.

It is an arithmetic number, because the mean of its divisors is an integer number (4502715).

Almost surely, 2^33620216 is an apocalyptic number.

It is an amenable number.

33620216 is an abundant number, since it is smaller than the sum of its proper divisors (38423224).

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

33620216 is a wasteful number, since it uses less digits than its factorization.

33620216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600374 (or 600370 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 33620216 is about 5798.2942319272. The cubic root of 33620216 is about 322.7504326457.

Adding to 33620216 its reverse (61202633), we get a palindrome (94822849).

The spelling of 33620216 in words is "thirty-three million, six hundred twenty thousand, two hundred sixteen".