40566771 has 16 divisors (see below), whose sum is σ = 68684800. Its totient is φ = 23180904.

The previous prime is 40566749. The next prime is 40566793. The reversal of 40566771 is 17766504.

It is an interprime number because it is at equal distance from previous prime (40566749) and next prime (40566793).

It is not a de Polignac number, because 40566771 - 2⁶ = 40566707 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (40566371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107131 + ... + 107508.

It is an arithmetic number, because the mean of its divisors is an integer number (4292800).

Almost surely, 2^40566771 is an apocalyptic number.

40566771 is a deficient number, since it is larger than the sum of its proper divisors (28118029).

40566771 is a wasteful number, since it uses less digits than its factorization.

40566771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214655 (or 214649 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 40566771 is about 6369.2048954324. The cubic root of 40566771 is about 343.6028943674.

It can be divided in two parts, 405 and 66771, that added together give a palindrome (67176).

The spelling of 40566771 in words is "forty million, five hundred sixty-six thousand, seven hundred seventy-one".