40068586 has 4 divisors (see below), whose sum is σ = 60102882. Its totient is φ = 20034292.

The previous prime is 40068571. The next prime is 40068593. The reversal of 40068586 is 68586004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38825361 + 1243225 = 6231^2 + 1115^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017145 + ... + 10017148.

Almost surely, 2^40068586 is an apocalyptic number.

40068586 is a deficient number, since it is larger than the sum of its proper divisors (20034296).

40068586 is a wasteful number, since it uses less digits than its factorization.

40068586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20034295.

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 40068586 is about 6329.9751974238. The cubic root of 40068586 is about 342.1905450727.

It can be divided in two parts, 400 and 68586, that added together give a palindrome (68986).

The spelling of 40068586 in words is "forty million, sixty-eight thousand, five hundred eighty-six".