40666886 has 8 divisors (see below), whose sum is σ = 65692704. Its totient is φ = 18769320.

The previous prime is 40666877. The next prime is 40666889. The reversal of 40666886 is 68866604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40666889) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 782030 + ... + 782081.

It is an arithmetic number, because the mean of its divisors is an integer number (8211588).

Almost surely, 2^40666886 is an apocalyptic number.

40666886 is a deficient number, since it is larger than the sum of its proper divisors (25025818).

40666886 is a wasteful number, since it uses less digits than its factorization.

40666886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564126.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 40666886 is about 6377.0593536520. The cubic root of 40666886 is about 343.8853221044.

The spelling of 40666886 in words is "forty million, six hundred sixty-six thousand, eight hundred eighty-six".