22340443 has 4 divisors (see below), whose sum is σ = 22516480. Its totient is φ = 22164408.

The previous prime is 22340441. The next prime is 22340467. The reversal of 22340443 is 34404322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34404322 = 2 ⋅17202161.

It is a cyclic number.

It is not a de Polignac number, because 22340443 - 2¹ = 22340441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22340441) 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, 87828 + ... + 88081.

It is an arithmetic number, because the mean of its divisors is an integer number (5629120).

Almost surely, 2^22340443 is an apocalyptic number.

22340443 is a deficient number, since it is larger than the sum of its proper divisors (176037).

22340443 is a wasteful number, since it uses less digits than its factorization.

22340443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176036.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 22340443 is about 4726.5677822285. The cubic root of 22340443 is about 281.6418966037.

Adding to 22340443 its reverse (34404322), we get a palindrome (56744765).

The spelling of 22340443 in words is "twenty-two million, three hundred forty thousand, four hundred forty-three".