20040382002 has 32 divisors (see below), whose sum is σ = 41282136000. Its totient is φ = 6480934848.

The previous prime is 20040381997. The next prime is 20040382003. The reversal of 20040382002 is 20028304002.

It is a self number, because there is not a number n which added to its sum of digits gives 20040382002.

It is not an unprimeable number, because it can be changed into a prime (20040382003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51852 + ... + 206807.

It is an arithmetic number, because the mean of its divisors is an integer number (1290066750).

Almost surely, 2^20040382002 is an apocalyptic number.

20040382002 is an abundant number, since it is smaller than the sum of its proper divisors (21241753998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20040382002 is a wasteful number, since it uses less digits than its factorization.

20040382002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259050.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20040382002 its reverse (20028304002), we get a palindrome (40068686004).

The spelling of 20040382002 in words is "twenty billion, forty million, three hundred eighty-two thousand, two".