23400220443 has 8 divisors (see below), whose sum is σ = 31491885888. Its totient is φ = 15454350984.

The previous prime is 23400220427. The next prime is 23400220471. The reversal of 23400220443 is 34402200432.

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

It is not a de Polignac number, because 23400220443 - 2⁴ = 23400220427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23400220343) 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, 36448621 + ... + 36449262.

It is an arithmetic number, because the mean of its divisors is an integer number (3936485736).

Almost surely, 2^23400220443 is an apocalyptic number.

23400220443 is a deficient number, since it is larger than the sum of its proper divisors (8091665445).

23400220443 is a wasteful number, since it uses less digits than its factorization.

23400220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72897993.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 23400220443 its reverse (34402200432), we get a palindrome (57802420875).

The spelling of 23400220443 in words is "twenty-three billion, four hundred million, two hundred twenty thousand, four hundred forty-three".