40006006 has 4 divisors (see below), whose sum is σ = 60009012. Its totient is φ = 20003002.

The previous prime is 40005997. The next prime is 40006013. The reversal of 40006006 is 60060004.

40006006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

40006006 is a modest number, since divided by 6006 gives 40 as remainder.

It is a congruent number.

It is an unprimeable number.

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, 10001500 + ... + 10001503.

It is an arithmetic number, because the mean of its divisors is an integer number (15002253).

Almost surely, 2^40006006 is an apocalyptic number.

40006006 is a deficient number, since it is larger than the sum of its proper divisors (20003006).

40006006 is a wasteful number, since it uses less digits than its factorization.

40006006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20003005.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40006006 is about 6325.0301185054. The cubic root of 40006006 is about 342.0123053379.

The spelling of 40006006 in words is "forty million, six thousand, six", and thus it is an eban number.