22142323 has 8 divisors (see below), whose sum is σ = 25505792. Its totient is φ = 18828936.

The previous prime is 22142299. The next prime is 22142327. The reversal of 22142323 is 32324122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22142323 - 2⁹ = 22141811 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 22142323.

It is not an unprimeable number, because it can be changed into a prime (22142327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11565 + ... + 13342.

It is an arithmetic number, because the mean of its divisors is an integer number (3188224).

Almost surely, 2^22142323 is an apocalyptic number.

22142323 is a deficient number, since it is larger than the sum of its proper divisors (3363469).

22142323 is a wasteful number, since it uses less digits than its factorization.

22142323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25041.

The product of its digits is 576, while the sum is 19.

The square root of 22142323 is about 4705.5629843835. The cubic root of 22142323 is about 280.8068690606.

Adding to 22142323 its reverse (32324122), we get a palindrome (54466445).

The spelling of 22142323 in words is "twenty-two million, one hundred forty-two thousand, three hundred twenty-three".