23445443 has 4 divisors (see below), whose sum is σ = 26794800. Its totient is φ = 20096088.

The previous prime is 23445439. The next prime is 23445467. The reversal of 23445443 is 34454432.

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

It is a cyclic number.

It is not a de Polignac number, because 23445443 - 2² = 23445439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23445413) 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, 1674668 + ... + 1674681.

It is an arithmetic number, because the mean of its divisors is an integer number (6698700).

Almost surely, 2^23445443 is an apocalyptic number.

23445443 is a deficient number, since it is larger than the sum of its proper divisors (3349357).

23445443 is an equidigital number, since it uses as much as digits as its factorization.

23445443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349356.

The product of its digits is 23040, while the sum is 29.

The square root of 23445443 is about 4842.0494627792. The cubic root of 23445443 is about 286.2108857522.

Adding to 23445443 its reverse (34454432), we get a palindrome (57899875).

The spelling of 23445443 in words is "twenty-three million, four hundred forty-five thousand, four hundred forty-three".