40004442263 has 2 divisors, whose sum is σ = 40004442264. Its totient is φ = 40004442262.

The previous prime is 40004442251. The next prime is 40004442293. The reversal of 40004442263 is 36224440004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40004442263 - 2¹² = 40004438167 is a prime.

It is a super-2 number, since 2×40004442263² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40004442293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002221131 + 20002221132.

It is an arithmetic number, because the mean of its divisors is an integer number (20002221132).

Almost surely, 2^40004442263 is an apocalyptic number.

40004442263 is a deficient number, since it is larger than the sum of its proper divisors (1).

40004442263 is an equidigital number, since it uses as much as digits as its factorization.

40004442263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 40004442263 its reverse (36224440004), we get a palindrome (76228882267).

The spelling of 40004442263 in words is "forty billion, four million, four hundred forty-two thousand, two hundred sixty-three".