40686086 has 16 divisors (see below), whose sum is σ = 71064864. Its totient is φ = 17107584.

The previous prime is 40686077. The next prime is 40686091. The reversal of 40686086 is 68068604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26675 + ... + 28158.

It is an arithmetic number, because the mean of its divisors is an integer number (4441554).

Almost surely, 2^40686086 is an apocalyptic number.

40686086 is a deficient number, since it is larger than the sum of its proper divisors (30378778).

40686086 is a wasteful number, since it uses less digits than its factorization.

40686086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54895.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 40686086 is about 6378.5645720648. The cubic root of 40686086 is about 343.9394329549.

The spelling of 40686086 in words is "forty million, six hundred eighty-six thousand, eighty-six".