23320443 has 4 divisors (see below), whose sum is σ = 31093928. Its totient is φ = 15546960.

The previous prime is 23320439. The next prime is 23320469. The reversal of 23320443 is 34402332.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23320443 - 2² = 23320439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23320433) 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 3 ways as a sum of consecutive naturals, for example, 3886738 + ... + 3886743.

It is an arithmetic number, because the mean of its divisors is an integer number (7773482).

Almost surely, 2^23320443 is an apocalyptic number.

23320443 is a deficient number, since it is larger than the sum of its proper divisors (7773485).

23320443 is an equidigital number, since it uses as much as digits as its factorization.

23320443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7773484.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 23320443 is about 4829.1244548054. The cubic root of 23320443 is about 285.7013321389.

Adding to 23320443 its reverse (34402332), we get a palindrome (57722775).

The spelling of 23320443 in words is "twenty-three million, three hundred twenty thousand, four hundred forty-three".