40424422243 has 2 divisors, whose sum is σ = 40424422244. Its totient is φ = 40424422242.

The previous prime is 40424422223. The next prime is 40424422289. The reversal of 40424422243 is 34222442404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40424422243 is a prime.

It is not a weakly prime, because it can be changed into another prime (40424422223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20212211121 + 20212211122.

It is an arithmetic number, because the mean of its divisors is an integer number (20212211122).

Almost surely, 2^40424422243 is an apocalyptic number.

40424422243 is a deficient number, since it is larger than the sum of its proper divisors (1).

40424422243 is an equidigital number, since it uses as much as digits as its factorization.

40424422243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 40424422243 its reverse (34222442404), we get a palindrome (74646864647).

The spelling of 40424422243 in words is "forty billion, four hundred twenty-four million, four hundred twenty-two thousand, two hundred forty-three".