40663683 has 6 divisors (see below), whose sum is σ = 58736444. Its totient is φ = 27109116.

The previous prime is 40663673. The next prime is 40663687. The reversal of 40663683 is 38636604.

40663683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40663683 - 2⁶ = 40663619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40663687) 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 in 5 ways as a sum of consecutive naturals, for example, 2259085 + ... + 2259102.

Almost surely, 2^40663683 is an apocalyptic number.

40663683 is a deficient number, since it is larger than the sum of its proper divisors (18072761).

40663683 is a wasteful number, since it uses less digits than its factorization.

40663683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518193 (or 4518190 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 40663683 is about 6376.8082141460. The cubic root of 40663683 is about 343.8762935170.

The spelling of 40663683 in words is "forty million, six hundred sixty-three thousand, six hundred eighty-three".