40666882 has 12 divisors (see below), whose sum is σ = 61445826. Its totient is φ = 20185760.

The previous prime is 40666877. The next prime is 40666889. The reversal of 40666882 is 28866604.

It can be written as a sum of positive squares in 3 ways, for example, as 18567481 + 22099401 = 4309^2 + 4701^2 .

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144582 + ... + 144862.

Almost surely, 2^40666882 is an apocalyptic number.

40666882 is a deficient number, since it is larger than the sum of its proper divisors (20778944).

40666882 is an equidigital number, since it uses as much as digits as its factorization.

40666882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 40666882 is about 6377.0590400278. The cubic root of 40666882 is about 343.8853108296.

The spelling of 40666882 in words is "forty million, six hundred sixty-six thousand, eight hundred eighty-two".