22720433 has 4 divisors (see below), whose sum is σ = 22733040. Its totient is φ = 22707828.

The previous prime is 22720421. The next prime is 22720441. The reversal of 22720433 is 33402722.

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 22720433 - 2¹⁰ = 22719409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22720399 and 22720408.

It is not an unprimeable number, because it can be changed into a prime (22720463) 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, 3035 + ... + 7392.

It is an arithmetic number, because the mean of its divisors is an integer number (5683260).

Almost surely, 2^22720433 is an apocalyptic number.

It is an amenable number.

22720433 is a deficient number, since it is larger than the sum of its proper divisors (12607).

22720433 is a wasteful number, since it uses less digits than its factorization.

22720433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12606.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 22720433 is about 4766.5955355998. The cubic root of 22720433 is about 283.2297492940.

The spelling of 22720433 in words is "twenty-two million, seven hundred twenty thousand, four hundred thirty-three".