4028006 has 8 divisors (see below), whose sum is σ = 6065280. Its totient is φ = 2006248.

The previous prime is 4027993. The next prime is 4028009. The reversal of 4028006 is 6008204.

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 (4028009) 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, 3206 + ... + 4281.

It is an arithmetic number, because the mean of its divisors is an integer number (758160).

Almost surely, 2^4028006 is an apocalyptic number.

4028006 is a deficient number, since it is larger than the sum of its proper divisors (2037274).

4028006 is a wasteful number, since it uses less digits than its factorization.

4028006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4028006 is about 2006.9892874652. The cubic root of 4028006 is about 159.1097168711.

The spelling of 4028006 in words is "four million, twenty-eight thousand, six".