40040044404583 has 2 divisors, whose sum is σ = 40040044404584. Its totient is φ = 40040044404582.

The previous prime is 40040044404571. The next prime is 40040044404617. The reversal of 40040044404583 is 38540444004004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40040044404583 - 2³³ = 40031454469991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40040044404083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020022202291 + 20020022202292.

It is an arithmetic number, because the mean of its divisors is an integer number (20020022202292).

Almost surely, 2^{40040044404583} is an apocalyptic number.

40040044404583 is a deficient number, since it is larger than the sum of its proper divisors (1).

40040044404583 is an equidigital number, since it uses as much as digits as its factorization.

40040044404583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 491520, while the sum is 40.

Adding to 40040044404583 its reverse (38540444004004), we get a palindrome (78580488408587).

The spelling of 40040044404583 in words is "forty trillion, forty billion, forty-four million, four hundred four thousand, five hundred eighty-three".