40440563 has 2 divisors, whose sum is σ = 40440564. Its totient is φ = 40440562.

The previous prime is 40440557. The next prime is 40440571. The reversal of 40440563 is 36504404.

40440563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40440563 - 2¹⁸ = 40178419 is a prime.

It is not a weakly prime, because it can be changed into another prime (40440503) 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 as a sum of consecutive naturals, namely, 20220281 + 20220282.

It is an arithmetic number, because the mean of its divisors is an integer number (20220282).

Almost surely, 2^40440563 is an apocalyptic number.

40440563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40440563 is an equidigital number, since it uses as much as digits as its factorization.

40440563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40440563 is about 6359.2895043393. The cubic root of 40440563 is about 343.2461945153.

Adding to 40440563 its reverse (36504404), we get a palindrome (76944967).

The spelling of 40440563 in words is "forty million, four hundred forty thousand, five hundred sixty-three".