40224422442173 has 2 divisors, whose sum is σ = 40224422442174. Its totient is φ = 40224422442172.

The previous prime is 40224422442151. The next prime is 40224422442223. The reversal of 40224422442173 is 37124422442204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31051441153924 + 9172981288249 = 5572382^2 + 3028693^2 .

It is a cyclic number.

It is not a de Polignac number, because 40224422442173 - 2³⁰ = 40223348700349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40224422442173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40224422442133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20112211221086 + 20112211221087.

It is an arithmetic number, because the mean of its divisors is an integer number (20112211221087).

Almost surely, 2^{40224422442173} is an apocalyptic number.

It is an amenable number.

40224422442173 is a deficient number, since it is larger than the sum of its proper divisors (1).

40224422442173 is an equidigital number, since it uses as much as digits as its factorization.

40224422442173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 688128, while the sum is 41.

Adding to 40224422442173 its reverse (37124422442204), we get a palindrome (77348844884377).

The spelling of 40224422442173 in words is "forty trillion, two hundred twenty-four billion, four hundred twenty-two million, four hundred forty-two thousand, one hundred seventy-three".