4040002 has 4 divisors (see below), whose sum is σ = 6060006. Its totient is φ = 2020000.

The previous prime is 4039991. The next prime is 4040009. The reversal of 4040002 is 2000404.

4040002 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.

It can be written as a sum of positive squares in only one way, i.e., 3845521 + 194481 = 1961^2 + 441^2 .

It is not an unprimeable number, because it can be changed into a prime (4040009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009999 + ... + 1010002.

Almost surely, 2^4040002 is an apocalyptic number.

4040002 is a deficient number, since it is larger than the sum of its proper divisors (2020004).

4040002 is a wasteful number, since it uses less digits than its factorization.

4040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020003.

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 4040002 is about 2009.9756217427. The cubic root of 4040002 is about 159.2675111175.

Adding to 4040002 its reverse (2000404), we get a palindrome (6040406).

The spelling of 4040002 in words is "four million, forty thousand, two", and thus it is an eban number.