2004020400404 has 48 divisors (see below), whose sum is σ = 4103203366080. Its totient is φ = 846692720640.

The previous prime is 2004020400359. The next prime is 2004020400407. The reversal of 2004020400404 is 4040040204002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004020400407) 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, 22570349 + ... + 22658964.

It is an arithmetic number, because the mean of its divisors is an integer number (85483403460).

Almost surely, 2^{2004020400404} is an apocalyptic number.

It is an amenable number.

2004020400404 is an abundant number, since it is smaller than the sum of its proper divisors (2099182965676).

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

2004020400404 is a wasteful number, since it uses less digits than its factorization.

2004020400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45229400 (or 45229398 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 2004020400404 its reverse (4040040204002), we get a palindrome (6044060604406).

The spelling of 2004020400404 in words is "two trillion, four billion, twenty million, four hundred thousand, four hundred four".