22434143 has 4 divisors (see below), whose sum is σ = 22605528. Its totient is φ = 22262760.

The previous prime is 22434133. The next prime is 22434149. The reversal of 22434143 is 34143422.

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 22434143 - 2¹⁶ = 22368607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22434149) 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, 85496 + ... + 85757.

It is an arithmetic number, because the mean of its divisors is an integer number (5651382).

Almost surely, 2^22434143 is an apocalyptic number.

22434143 is a deficient number, since it is larger than the sum of its proper divisors (171385).

22434143 is a wasteful number, since it uses less digits than its factorization.

22434143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171384.

The product of its digits is 2304, while the sum is 23.

The square root of 22434143 is about 4736.4694657519. The cubic root of 22434143 is about 282.0351003372.

Adding to 22434143 its reverse (34143422), we get a palindrome (56577565).

The spelling of 22434143 in words is "twenty-two million, four hundred thirty-four thousand, one hundred forty-three".