40686036 has 24 divisors (see below), whose sum is σ = 95106144. Its totient is φ = 13537440.

The previous prime is 40686031. The next prime is 40686047. The reversal of 40686036 is 63068604.

40686036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40685988 and 40686006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40686031) 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 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 10121.

It is an arithmetic number, because the mean of its divisors is an integer number (3962756).

Almost surely, 2^40686036 is an apocalyptic number.

It is an amenable number.

40686036 is an abundant number, since it is smaller than the sum of its proper divisors (54420108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40686036 is a wasteful number, since it uses less digits than its factorization.

40686036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6151 (or 6149 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 40686036 is about 6378.5606526865. The cubic root of 40686036 is about 343.9392920634.

The spelling of 40686036 in words is "forty million, six hundred eighty-six thousand, thirty-six".