22040400403243 has 4 divisors (see below), whose sum is σ = 22080693640360. Its totient is φ = 22000107166128.

The previous prime is 22040400403159. The next prime is 22040400403247. The reversal of 22040400403243 is 34230400404022.

It is a happy number.

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 22040400403243 - 2⁹ = 22040400402731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22040400403247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20146617738 + ... + 20146618831.

It is an arithmetic number, because the mean of its divisors is an integer number (5520173410090).

Almost surely, 2^{22040400403243} is an apocalyptic number.

22040400403243 is a deficient number, since it is larger than the sum of its proper divisors (40293237117).

22040400403243 is an equidigital number, since it uses as much as digits as its factorization.

22040400403243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40293237116.

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

Adding to 22040400403243 its reverse (34230400404022), we get a palindrome (56270800807265).

The spelling of 22040400403243 in words is "twenty-two trillion, forty billion, four hundred million, four hundred three thousand, two hundred forty-three".