40873636 has 12 divisors (see below), whose sum is σ = 75293680. Its totient is φ = 19361160.

The previous prime is 40873631. The next prime is 40873697. The reversal of 40873636 is 63637804.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40873595 and 40873604.

It is not an unprimeable number, because it can be changed into a prime (40873631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268830 + ... + 268981.

Almost surely, 2^40873636 is an apocalyptic number.

It is an amenable number.

40873636 is a deficient number, since it is larger than the sum of its proper divisors (34420044).

40873636 is a wasteful number, since it uses less digits than its factorization.

40873636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537834 (or 537832 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 40873636 is about 6393.2492521409. The cubic root of 40873636 is about 344.4671070147.

The spelling of 40873636 in words is "forty million, eight hundred seventy-three thousand, six hundred thirty-six".