40144411423 has 4 divisors (see below), whose sum is σ = 40161562168. Its totient is φ = 40127260680.

The previous prime is 40144411397. The next prime is 40144411451. The reversal of 40144411423 is 32411444104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40144411423 is a prime.

It is a super-2 number, since 2×40144411423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40144411391 and 40144411400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144411123) by changing a digit.

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, 8571861 + ... + 8576542.

It is an arithmetic number, because the mean of its divisors is an integer number (10040390542).

Almost surely, 2^40144411423 is an apocalyptic number.

40144411423 is a deficient number, since it is larger than the sum of its proper divisors (17150745).

40144411423 is a wasteful number, since it uses less digits than its factorization.

40144411423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17150744.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 40144411423 its reverse (32411444104), we get a palindrome (72555855527).

The spelling of 40144411423 in words is "forty billion, one hundred forty-four million, four hundred eleven thousand, four hundred twenty-three".