33116216 has 24 divisors (see below), whose sum is σ = 71055720. Its totient is φ = 14174208.

The previous prime is 33116203. The next prime is 33116227. The reversal of 33116216 is 61261133.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 33116191 and 33116200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42680 + ... + 43448.

It is an arithmetic number, because the mean of its divisors is an integer number (2960655).

Almost surely, 2^33116216 is an apocalyptic number.

It is an amenable number.

33116216 is an abundant number, since it is smaller than the sum of its proper divisors (37939504).

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

33116216 is an frugal number, since it uses more digits than its factorization.

33116216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551 (or 778 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 33116216 is about 5754.6690608583. The cubic root of 33116216 is about 321.1295239827.

Adding to 33116216 its reverse (61261133), we get a palindrome (94377349).

The spelling of 33116216 in words is "thirty-three million, one hundred sixteen thousand, two hundred sixteen".