22143344 has 10 divisors (see below), whose sum is σ = 42902760. Its totient is φ = 11071664.

The previous prime is 22143343. The next prime is 22143361. The reversal of 22143344 is 44334122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22143343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691964 + ... + 691995.

It is an arithmetic number, because the mean of its divisors is an integer number (4290276).

Almost surely, 2^22143344 is an apocalyptic number.

It is an amenable number.

22143344 is a deficient number, since it is larger than the sum of its proper divisors (20759416).

22143344 is a wasteful number, since it uses less digits than its factorization.

22143344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383967 (or 1383961 counting only the distinct ones).

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

The square root of 22143344 is about 4705.6714717456. The cubic root of 22143344 is about 280.8111850697.

Adding to 22143344 its reverse (44334122), we get a palindrome (66477466).

The spelling of 22143344 in words is "twenty-two million, one hundred forty-three thousand, three hundred forty-four".