40020043024205 has 4 divisors (see below), whose sum is σ = 48024051629052. Its totient is φ = 32016034419360.

The previous prime is 40020043024153. The next prime is 40020043024211. The reversal of 40020043024205 is 50242034002004.

It is a happy number.

40020043024205 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 5525494305769 + 34494548718436 = 2350637^2 + 5873206^2 .

It is not a de Polignac number, because 40020043024205 - 2¹⁴ = 40020043007821 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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4002004302416 + ... + 4002004302425.

It is an arithmetic number, because the mean of its divisors is an integer number (12006012907263).

Almost surely, 2^{40020043024205} is an apocalyptic number.

It is an amenable number.

40020043024205 is a deficient number, since it is larger than the sum of its proper divisors (8004008604847).

40020043024205 is an equidigital number, since it uses as much as digits as its factorization.

40020043024205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8004008604846.

The product of its (nonzero) digits is 7680, while the sum is 26.

Adding to 40020043024205 its reverse (50242034002004), we get a palindrome (90262077026209).

The spelling of 40020043024205 in words is "forty trillion, twenty billion, forty-three million, twenty-four thousand, two hundred five".