4003006 has 12 divisors (see below), whose sum is σ = 6985008. Its totient is φ = 1715532.

The previous prime is 4003001. The next prime is 4003019. The reversal of 4003006 is 6003004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003001) 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 in 5 ways as a sum of consecutive naturals, for example, 20326 + ... + 20521.

It is an arithmetic number, because the mean of its divisors is an integer number (582084).

Almost surely, 2^4003006 is an apocalyptic number.

4003006 is a deficient number, since it is larger than the sum of its proper divisors (2982002).

4003006 is a wasteful number, since it uses less digits than its factorization.

4003006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863 (or 40856 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 4003006 is about 2000.7513588650. The cubic root of 4003006 is about 158.7798596363.

The spelling of 4003006 in words is "four million, three thousand, six".