2004155504 has 40 divisors (see below), whose sum is σ = 4214730240. Its totient is φ = 917699328.

The previous prime is 2004155501. The next prime is 2004155537. The reversal of 2004155504 is 4055514002.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004155501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11519 + ... + 64350.

It is an arithmetic number, because the mean of its divisors is an integer number (105368256).

Almost surely, 2^2004155504 is an apocalyptic number.

It is an amenable number.

2004155504 is an abundant number, since it is smaller than the sum of its proper divisors (2210574736).

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

2004155504 is a wasteful number, since it uses less digits than its factorization.

2004155504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76017 (or 76011 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2004155504 is about 44767.7953890964. The cubic root of 2004155504 is about 1260.7930474023.

Adding to 2004155504 its reverse (4055514002), we get a palindrome (6059669506).

The spelling of 2004155504 in words is "two billion, four million, one hundred fifty-five thousand, five hundred four".