4066506 has 24 divisors (see below), whose sum is σ = 8854560. Its totient is φ = 1348776.

The previous prime is 4066453. The next prime is 4066507. The reversal of 4066506 is 6056604.

4066506 is a `hidden beast` number, since 4 + 0 + 6 + 650 + 6 = 666.

4066506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4066506.

It is not an unprimeable number, because it can be changed into a prime (4066507) 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 11 ways as a sum of consecutive naturals, for example, 4305 + ... + 5163.

It is an arithmetic number, because the mean of its divisors is an integer number (368940).

Almost surely, 2^4066506 is an apocalyptic number.

4066506 is an abundant number, since it is smaller than the sum of its proper divisors (4788054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4066506 is a wasteful number, since it uses less digits than its factorization.

4066506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4066506 is about 2016.5579585026. The cubic root of 4066506 is about 159.6150380614.

The spelling of 4066506 in words is "four million, sixty-six thousand, five hundred six".