40442255224405 has 4 divisors (see below), whose sum is σ = 48530706269292. Its totient is φ = 32353804179520.

The previous prime is 40442255224183. The next prime is 40442255224451. The reversal of 40442255224405 is 50442255224404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15194856171364 + 25247399053041 = 3898058^2 + 5024679^2 .

It is not a de Polignac number, because 40442255224405 - 2¹⁹ = 40442254700117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4044225522436 + ... + 4044225522445.

It is an arithmetic number, because the mean of its divisors is an integer number (12132676567323).

Almost surely, 2^{40442255224405} is an apocalyptic number.

It is an amenable number.

40442255224405 is a deficient number, since it is larger than the sum of its proper divisors (8088451044887).

40442255224405 is an equidigital number, since it uses as much as digits as its factorization.

40442255224405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088451044886.

The product of its (nonzero) digits is 2048000, while the sum is 43.

Subtracting 40442255224405 from its reverse (50442255224404), we obtain a palindrome (9999999999999).

The spelling of 40442255224405 in words is "forty trillion, four hundred forty-two billion, two hundred fifty-five million, two hundred twenty-four thousand, four hundred five".