40040400041 has 4 divisors (see below), whose sum is σ = 40147747332. Its totient is φ = 39933052752.

The previous prime is 40040400031. The next prime is 40040400089. The reversal of 40040400041 is 14000404004.

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 12104620441 + 27935779600 = 110021^2 + 167140^2 .

It is a cyclic number.

It is not a de Polignac number, because 40040400041 - 2⁶ = 40040399977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40040399992 and 40040400019.

It is not an unprimeable number, because it can be changed into a prime (40040400031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53673086 + ... + 53673831.

It is an arithmetic number, because the mean of its divisors is an integer number (10036936833).

Almost surely, 2^40040400041 is an apocalyptic number.

It is an amenable number.

40040400041 is a deficient number, since it is larger than the sum of its proper divisors (107347291).

40040400041 is a wasteful number, since it uses less digits than its factorization.

40040400041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107347290.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 40040400041 its reverse (14000404004), we get a palindrome (54040804045).

The spelling of 40040400041 in words is "forty billion, forty million, four hundred thousand, forty-one".