40243600636 has 24 divisors (see below), whose sum is σ = 74145722000. Its totient is φ = 19059473664.

The previous prime is 40243600609. The next prime is 40243600679. The reversal of 40243600636 is 63600634204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430900 + ... + 515908.

Almost surely, 2^40243600636 is an apocalyptic number.

It is an amenable number.

40243600636 is a deficient number, since it is larger than the sum of its proper divisors (33902121364).

40243600636 is a wasteful number, since it uses less digits than its factorization.

40243600636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91261 (or 91259 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 40243600636 in words is "forty billion, two hundred forty-three million, six hundred thousand, six hundred thirty-six".