33132216 has 64 divisors (see below), whose sum is σ = 90155520. Its totient is φ = 10085760.

The previous prime is 33132163. The next prime is 33132241. The reversal of 33132216 is 61223133.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 33132192 and 33132201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31621 + ... + 32651.

It is an arithmetic number, because the mean of its divisors is an integer number (1408680).

Almost surely, 2^33132216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33132216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45077760).

33132216 is an abundant number, since it is smaller than the sum of its proper divisors (57023304).

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

33132216 is a wasteful number, since it uses less digits than its factorization.

33132216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1152 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 33132216 is about 5756.0590684947. The cubic root of 33132216 is about 321.1812332432.

Adding to 33132216 its reverse (61223133), we get a palindrome (94355349).

The spelling of 33132216 in words is "thirty-three million, one hundred thirty-two thousand, two hundred sixteen".