22443040342 has 4 divisors (see below), whose sum is σ = 33664560516. Its totient is φ = 11221520170.

The previous prime is 22443040223. The next prime is 22443040379. The reversal of 22443040342 is 24304034422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22443040342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610760084 + ... + 5610760087.

It is an arithmetic number, because the mean of its divisors is an integer number (8416140129).

Almost surely, 2^22443040342 is an apocalyptic number.

22443040342 is a deficient number, since it is larger than the sum of its proper divisors (11221520174).

22443040342 is a wasteful number, since it uses less digits than its factorization.

22443040342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221520173.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 22443040342 its reverse (24304034422), we get a palindrome (46747074764).

The spelling of 22443040342 in words is "twenty-two billion, four hundred forty-three million, forty thousand, three hundred forty-two".