40166573 has 2 divisors, whose sum is σ = 40166574. Its totient is φ = 40166572.

The previous prime is 40166569. The next prime is 40166587. The reversal of 40166573 is 37566104.

40166573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26646244 + 13520329 = 5162^2 + 3677^2 .

It is a cyclic number.

It is not a de Polignac number, because 40166573 - 2² = 40166569 is a prime.

It is a super-2 number, since 2×40166573² = 3226707173128658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40166543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20083286 + 20083287.

It is an arithmetic number, because the mean of its divisors is an integer number (20083287).

Almost surely, 2^40166573 is an apocalyptic number.

It is an amenable number.

40166573 is a deficient number, since it is larger than the sum of its proper divisors (1).

40166573 is an equidigital number, since it uses as much as digits as its factorization.

40166573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 40166573 is about 6337.7103909851. The cubic root of 40166573 is about 342.4692582563.

The spelling of 40166573 in words is "forty million, one hundred sixty-six thousand, five hundred seventy-three".