4009006 has 8 divisors (see below), whose sum is σ = 6141600. Its totient is φ = 1961808.

The previous prime is 4009003. The next prime is 4009007. The reversal of 4009006 is 6009004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21231 + ... + 21418.

It is an arithmetic number, because the mean of its divisors is an integer number (767700).

Almost surely, 2^4009006 is an apocalyptic number.

4009006 is a deficient number, since it is larger than the sum of its proper divisors (2132594).

4009006 is a wasteful number, since it uses less digits than its factorization.

4009006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42698.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 4009006 is about 2002.2502341116. The cubic root of 4009006 is about 158.8591503470.

The spelling of 4009006 in words is "four million, nine thousand, six".