40424104013 has 4 divisors (see below), whose sum is σ = 40428827868. Its totient is φ = 40419380160.

The previous prime is 40424103991. The next prime is 40424104069. The reversal of 40424104013 is 31040142404.

It is a happy number.

40424104013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 17513346244 + 22910757769 = 132338^2 + 151363^2 .

It is a cyclic number.

It is not a de Polignac number, because 40424104013 - 2⁶ = 40424103949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40424104013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424104093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2349068 + ... + 2366213.

It is an arithmetic number, because the mean of its divisors is an integer number (10107206967).

Almost surely, 2^40424104013 is an apocalyptic number.

It is an amenable number.

40424104013 is a deficient number, since it is larger than the sum of its proper divisors (4723855).

40424104013 is an equidigital number, since it uses as much as digits as its factorization.

40424104013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723854.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40424104013 its reverse (31040142404), we get a palindrome (71464246417).

The spelling of 40424104013 in words is "forty billion, four hundred twenty-four million, one hundred four thousand, thirteen".