23440032443 has 8 divisors (see below), whose sum is σ = 23689061760. Its totient is φ = 23191153920.

The previous prime is 23440032437. The next prime is 23440032457. The reversal of 23440032443 is 34423004432.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23440032443 - 2²⁶ = 23372923579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23440032403) 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 7 ways as a sum of consecutive naturals, for example, 289853 + ... + 361793.

It is an arithmetic number, because the mean of its divisors is an integer number (2961132720).

Almost surely, 2^23440032443 is an apocalyptic number.

23440032443 is a deficient number, since it is larger than the sum of its proper divisors (249029317).

23440032443 is an equidigital number, since it uses as much as digits as its factorization.

23440032443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75397.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 23440032443 its reverse (34423004432), we get a palindrome (57863036875).

The spelling of 23440032443 in words is "twenty-three billion, four hundred forty million, thirty-two thousand, four hundred forty-three".