2004155530 has 64 divisors (see below), whose sum is σ = 4104172800. Its totient is φ = 698526720.

The previous prime is 2004155501. The next prime is 2004155537. The reversal of 2004155530 is 355514002.

It is a junction number, because it is equal to n+sod(n) for n = 2004155495 and 2004155504.

It is not an unprimeable number, because it can be changed into a prime (2004155537) 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 31 ways as a sum of consecutive naturals, for example, 766866 + ... + 769474.

It is an arithmetic number, because the mean of its divisors is an integer number (64127700).

Almost surely, 2^2004155530 is an apocalyptic number.

2004155530 is an abundant number, since it is smaller than the sum of its proper divisors (2100017270).

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

2004155530 is a wasteful number, since it uses less digits than its factorization.

2004155530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2004155530 is about 44767.7956794837. The cubic root of 2004155530 is about 1260.7930528544.

Adding to 2004155530 its reverse (355514002), we get a palindrome (2359669532).

The spelling of 2004155530 in words is "two billion, four million, one hundred fifty-five thousand, five hundred thirty".