33906216 has 16 divisors (see below), whose sum is σ = 84765600. Its totient is φ = 11302064.

The previous prime is 33906199. The next prime is 33906227. The reversal of 33906216 is 61260933.

It is a happy number.

It is a super-2 number, since 2×33906216² = 2299262966877312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706356 + ... + 706403.

It is an arithmetic number, because the mean of its divisors is an integer number (5297850).

Almost surely, 2^33906216 is an apocalyptic number.

It is an amenable number.

33906216 is an abundant number, since it is smaller than the sum of its proper divisors (50859384).

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

33906216 is a wasteful number, since it uses less digits than its factorization.

33906216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412768 (or 1412764 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 33906216 is about 5822.9044299215. The cubic root of 33906216 is about 323.6630394090.

The spelling of 33906216 in words is "thirty-three million, nine hundred six thousand, two hundred sixteen".