33216064 has 28 divisors (see below), whose sum is σ = 75330304. Its totient is φ = 14235264.

The previous prime is 33216059. The next prime is 33216067. The reversal of 33216064 is 46061233.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×33216064² = 2206613815304192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33216067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36624 + ... + 37519.

It is an arithmetic number, because the mean of its divisors is an integer number (2690368).

Almost surely, 2^33216064 is an apocalyptic number.

It is an amenable number.

33216064 is an abundant number, since it is smaller than the sum of its proper divisors (42114240).

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

33216064 is an equidigital number, since it uses as much as digits as its factorization.

33216064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74162 (or 74152 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 33216064 is about 5763.3379217256. The cubic root of 33216064 is about 321.4519437631.

Adding to 33216064 its reverse (46061233), we get a palindrome (79277297).

The spelling of 33216064 in words is "thirty-three million, two hundred sixteen thousand, sixty-four".