40424040423 has 48 divisors (see below), whose sum is σ = 63573531840. Its totient is φ = 24603651072.

The previous prime is 40424040361. The next prime is 40424040431. The reversal of 40424040423 is 32404042404.

It is a happy number.

It is not a de Polignac number, because 40424040423 - 2⁹ = 40424039911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424040443) 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 47 ways as a sum of consecutive naturals, for example, 6726486 + ... + 6732492.

It is an arithmetic number, because the mean of its divisors is an integer number (1324448580).

Almost surely, 2^40424040423 is an apocalyptic number.

40424040423 is a deficient number, since it is larger than the sum of its proper divisors (23149491417).

40424040423 is a wasteful number, since it uses less digits than its factorization.

40424040423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6648 (or 6645 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 40424040423 its reverse (32404042404), we get a palindrome (72828082827).

The spelling of 40424040423 in words is "forty billion, four hundred twenty-four million, forty thousand, four hundred twenty-three".