33220323 has 6 divisors (see below), whose sum is σ = 47984924. Its totient is φ = 22146876.

The previous prime is 33220321. The next prime is 33220331. The reversal of 33220323 is 32302233.

It is not a de Polignac number, because 33220323 - 2¹ = 33220321 is a prime.

It is a super-2 number, since 2×33220323² = 2207179720448658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33220296 and 33220305.

It is not an unprimeable number, because it can be changed into a prime (33220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1845565 + ... + 1845582.

Almost surely, 2^33220323 is an apocalyptic number.

33220323 is a deficient number, since it is larger than the sum of its proper divisors (14764601).

33220323 is a wasteful number, since it uses less digits than its factorization.

33220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691153 (or 3691150 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 33220323 is about 5763.7074006233. The cubic root of 33220323 is about 321.4656821491.

Adding to 33220323 its reverse (32302233), we get a palindrome (65522556).

The spelling of 33220323 in words is "thirty-three million, two hundred twenty thousand, three hundred twenty-three".