40344004447 has 2 divisors, whose sum is σ = 40344004448. Its totient is φ = 40344004446.

The previous prime is 40344004411. The next prime is 40344004451. The reversal of 40344004447 is 74440044304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40344004447 - 2⁷ = 40344004319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40344004247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20172002223 + 20172002224.

It is an arithmetic number, because the mean of its divisors is an integer number (20172002224).

Almost surely, 2^40344004447 is an apocalyptic number.

40344004447 is a deficient number, since it is larger than the sum of its proper divisors (1).

40344004447 is an equidigital number, since it uses as much as digits as its factorization.

40344004447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 34.

The spelling of 40344004447 in words is "forty billion, three hundred forty-four million, four thousand, four hundred forty-seven".