33297222 has 64 divisors (see below), whose sum is σ = 79073280. Its totient is φ = 9150624.

The previous prime is 33297167. The next prime is 33297247. The reversal of 33297222 is 22279233.

It is a super-2 number, since 2×33297222² = 2217409985834568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33297222.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 185929 + ... + 186107.

It is an arithmetic number, because the mean of its divisors is an integer number (1235520).

Almost surely, 2^33297222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33297222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39536640).

33297222 is an abundant number, since it is smaller than the sum of its proper divisors (45776058).

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

33297222 is a wasteful number, since it uses less digits than its factorization.

33297222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337.

The product of its digits is 9072, while the sum is 30.

The square root of 33297222 is about 5770.3745112427. The cubic root of 33297222 is about 321.7135358458.

The spelling of 33297222 in words is "thirty-three million, two hundred ninety-seven thousand, two hundred twenty-two".