40423042013 has 16 divisors (see below), whose sum is σ = 43883616000. Its totient is φ = 37104443712.

The previous prime is 40423041979. The next prime is 40423042019. The reversal of 40423042013 is 31024032404.

It is a cyclic number.

It is not a de Polignac number, because 40423042013 - 2¹² = 40423037917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40423042013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40423042019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47723 + ... + 288311.

It is an arithmetic number, because the mean of its divisors is an integer number (2742726000).

Almost surely, 2^40423042013 is an apocalyptic number.

It is an amenable number.

40423042013 is a deficient number, since it is larger than the sum of its proper divisors (3460573987).

40423042013 is a wasteful number, since it uses less digits than its factorization.

40423042013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240884.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40423042013 its reverse (31024032404), we get a palindrome (71447074417).

The spelling of 40423042013 in words is "forty billion, four hundred twenty-three million, forty-two thousand, thirteen".