2002040004402 has 24 divisors (see below), whose sum is σ = 4337785702380. Its totient is φ = 667341689760.

The previous prime is 2002040004389. The next prime is 2002040004511. The reversal of 2002040004402 is 2044000402002.

2002040004402 is a `hidden beast` number, since 20 + 0 + 204 + 0 + 0 + 0 + 440 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1966779051561 + 35260952841 = 1402419^2 + 187779^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2695152 + ... + 3356772.

Almost surely, 2^{2002040004402} is an apocalyptic number.

2002040004402 is an abundant number, since it is smaller than the sum of its proper divisors (2335745697978).

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

2002040004402 is a wasteful number, since it uses less digits than its factorization.

2002040004402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829738 (or 829735 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 2002040004402 its reverse (2044000402002), we get a palindrome (4046040406404).

The spelling of 2002040004402 in words is "two trillion, two billion, forty million, four thousand, four hundred two".