22440002243 has 4 divisors (see below), whose sum is σ = 22747399608. Its totient is φ = 22132604880.

The previous prime is 22440002201. The next prime is 22440002267. The reversal of 22440002243 is 34220004422.

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 22440002243 - 2¹⁴ = 22439985859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22440002743) 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, 153698573 + ... + 153698718.

It is an arithmetic number, because the mean of its divisors is an integer number (5686849902).

Almost surely, 2^22440002243 is an apocalyptic number.

22440002243 is a deficient number, since it is larger than the sum of its proper divisors (307397365).

22440002243 is an equidigital number, since it uses as much as digits as its factorization.

22440002243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307397364.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 22440002243 its reverse (34220004422), we get a palindrome (56660006665).

The spelling of 22440002243 in words is "twenty-two billion, four hundred forty million, two thousand, two hundred forty-three".