40330663 has 2 divisors, whose sum is σ = 40330664. Its totient is φ = 40330662.

The previous prime is 40330651. The next prime is 40330679. The reversal of 40330663 is 36603304.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40330663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40330643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165331 + 20165332.

It is an arithmetic number, because the mean of its divisors is an integer number (20165332).

Almost surely, 2^40330663 is an apocalyptic number.

40330663 is a deficient number, since it is larger than the sum of its proper divisors (1).

40330663 is an equidigital number, since it uses as much as digits as its factorization.

40330663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 40330663 is about 6350.6427233785. The cubic root of 40330663 is about 342.9349807483.

Adding to 40330663 its reverse (36603304), we get a palindrome (76933967).

The spelling of 40330663 in words is "forty million, three hundred thirty thousand, six hundred sixty-three".