33215264 has 48 divisors (see below), whose sum is σ = 67858560. Its totient is φ = 15993600.

The previous prime is 33215227. The next prime is 33215267. The reversal of 33215264 is 46251233.

It is a super-2 number, since 2×33215264² = 2206507525179392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33215267) 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 7 ways as a sum of consecutive naturals, for example, 138857 + ... + 139095.

It is an arithmetic number, because the mean of its divisors is an integer number (1413720).

Almost surely, 2^33215264 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 33215264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33929280).

33215264 is an abundant number, since it is smaller than the sum of its proper divisors (34643296).

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

33215264 is a wasteful number, since it uses less digits than its factorization.

33215264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 385 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 33215264 is about 5763.2685170830. The cubic root of 33215264 is about 321.4493630478.

Adding to 33215264 its reverse (46251233), we get a palindrome (79466497).

The spelling of 33215264 in words is "thirty-three million, two hundred fifteen thousand, two hundred sixty-four".