22242143 has 24 divisors (see below), whose sum is σ = 28635264. Its totient is φ = 16783200.

The previous prime is 22242109. The next prime is 22242161. The reversal of 22242143 is 34124222.

It is not a de Polignac number, because 22242143 - 2¹⁴ = 22225759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22242193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105308 + ... + 105518.

It is an arithmetic number, because the mean of its divisors is an integer number (1193136).

Almost surely, 2^22242143 is an apocalyptic number.

22242143 is a deficient number, since it is larger than the sum of its proper divisors (6393121).

22242143 is a wasteful number, since it uses less digits than its factorization.

22242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 266 counting only the distinct ones).

The product of its digits is 768, while the sum is 20.

The square root of 22242143 is about 4716.1576521571. The cubic root of 22242143 is about 281.2282058503.

Adding to 22242143 its reverse (34124222), we get a palindrome (56366365).

The spelling of 22242143 in words is "twenty-two million, two hundred forty-two thousand, one hundred forty-three".