22043023 has 4 divisors (see below), whose sum is σ = 22238208. Its totient is φ = 21847840.

The previous prime is 22043017. The next prime is 22043027. The reversal of 22043023 is 32034022.

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 22043023 - 2⁹ = 22042511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22042988 and 22043006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043027) 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, 97423 + ... + 97648.

It is an arithmetic number, because the mean of its divisors is an integer number (5559552).

Almost surely, 2^22043023 is an apocalyptic number.

22043023 is a deficient number, since it is larger than the sum of its proper divisors (195185).

22043023 is a wasteful number, since it uses less digits than its factorization.

22043023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195184.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 22043023 is about 4694.9997870074. Note that the first 3 decimals coincide. The cubic root of 22043023 is about 280.3864688835.

Adding to 22043023 its reverse (32034022), we get a palindrome (54077045).

Subtracting 22043023 from its reverse (32034022), we obtain a palindrome (9990999).

The spelling of 22043023 in words is "twenty-two million, forty-three thousand, twenty-three".