33320223 has 12 divisors (see below), whose sum is σ = 48311640. Its totient is φ = 22129296.

The previous prime is 33320219. The next prime is 33320233. The reversal of 33320223 is 32202333.

It is not a de Polignac number, because 33320223 - 2² = 33320219 is a prime.

It is a super-2 number, since 2×33320223² = 2220474521539458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33320196 and 33320205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33320233) 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 11 ways as a sum of consecutive naturals, for example, 4461 + ... + 9302.

It is an arithmetic number, because the mean of its divisors is an integer number (4025970).

Almost surely, 2^33320223 is an apocalyptic number.

33320223 is a deficient number, since it is larger than the sum of its proper divisors (14991417).

33320223 is a wasteful number, since it uses less digits than its factorization.

33320223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14038 (or 14035 counting only the distinct ones).

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

The square root of 33320223 is about 5772.3671920625. The cubic root of 33320223 is about 321.7875963768.

Adding to 33320223 its reverse (32202333), we get a palindrome (65522556).

The spelling of 33320223 in words is "thirty-three million, three hundred twenty thousand, two hundred twenty-three".