40430563 has 2 divisors, whose sum is σ = 40430564. Its totient is φ = 40430562.

The previous prime is 40430557. The next prime is 40430581. The reversal of 40430563 is 36503404.

40430563 is nontrivially palindromic in base 14.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40430563 - 2⁵ = 40430531 is a prime.

It is not a weakly prime, because it can be changed into another prime (40430543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215281 + 20215282.

It is an arithmetic number, because the mean of its divisors is an integer number (20215282).

Almost surely, 2^40430563 is an apocalyptic number.

40430563 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430563 is an equidigital number, since it uses as much as digits as its factorization.

40430563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 40430563 is about 6358.5032043713. The cubic root of 40430563 is about 343.2178999463.

Adding to 40430563 its reverse (36503404), we get a palindrome (76933967).

The spelling of 40430563 in words is "forty million, four hundred thirty thousand, five hundred sixty-three".