22720333 has 4 divisors (see below), whose sum is σ = 23916160. Its totient is φ = 21524508.

The previous prime is 22720319. The next prime is 22720349. The reversal of 22720333 is 33302722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22720333 - 2⁹ = 22719821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22720363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597885 + ... + 597922.

It is an arithmetic number, because the mean of its divisors is an integer number (5979040).

Almost surely, 2^22720333 is an apocalyptic number.

It is an amenable number.

22720333 is a deficient number, since it is larger than the sum of its proper divisors (1195827).

22720333 is a wasteful number, since it uses less digits than its factorization.

22720333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195826.

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 22720333 is about 4766.5850459212. The cubic root of 22720333 is about 283.2293337647.

The spelling of 22720333 in words is "twenty-two million, seven hundred twenty thousand, three hundred thirty-three".