20222443 has 4 divisors (see below), whose sum is σ = 20408080. Its totient is φ = 20036808.

The previous prime is 20222437. The next prime is 20222459. The reversal of 20222443 is 34422202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34422202 = 2 ⋅17211101.

It is a cyclic number.

It is not a de Polignac number, because 20222443 - 2⁹ = 20221931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20222443.

It is not an unprimeable number, because it can be changed into a prime (20222413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92655 + ... + 92872.

It is an arithmetic number, because the mean of its divisors is an integer number (5102020).

Almost surely, 2^20222443 is an apocalyptic number.

20222443 is a deficient number, since it is larger than the sum of its proper divisors (185637).

20222443 is a wasteful number, since it uses less digits than its factorization.

20222443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185636.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20222443 is about 4496.9370687169. The cubic root of 20222443 is about 272.4443923229. Note that the first 3 decimals are identical.

Adding to 20222443 its reverse (34422202), we get a palindrome (54644645).

It can be divided in two parts, 2022 and 2443, that added together give a triangular number (4465 = T₉₄).

The spelling of 20222443 in words is "twenty million, two hundred twenty-two thousand, four hundred forty-three".