4008002 has 4 divisors (see below), whose sum is σ = 6012006. Its totient is φ = 2004000.

The previous prime is 4008001. The next prime is 4008013. The reversal of 4008002 is 2008004.

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

It can be written as a sum of positive squares in only one way, i.e., 3806401 + 201601 = 1951^2 + 449^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4008001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001999 + ... + 1002002.

Almost surely, 2^4008002 is an apocalyptic number.

4008002 is a deficient number, since it is larger than the sum of its proper divisors (2004004).

4008002 is a wasteful number, since it uses less digits than its factorization.

4008002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004003.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 4008002 is about 2001.9995004994. Note that the first 3 decimals coincide. The cubic root of 4008002 is about 158.8458878822.

The spelling of 4008002 in words is "four million, eight thousand, two".