2005188904 has 16 divisors (see below), whose sum is σ = 3761640000. Its totient is φ = 1002084912.

The previous prime is 2005188869. The next prime is 2005188907. The reversal of 2005188904 is 4098815002.

It is not an unprimeable number, because it can be changed into a prime (2005188907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46702 + ... + 78685.

It is an arithmetic number, because the mean of its divisors is an integer number (235102500).

Almost surely, 2^2005188904 is an apocalyptic number.

It is an amenable number.

2005188904 is a deficient number, since it is larger than the sum of its proper divisors (1756451096).

2005188904 is a wasteful number, since it uses less digits than its factorization.

2005188904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127392 (or 127388 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 2005188904 is about 44779.3356806463. The cubic root of 2005188904 is about 1261.0097105070.

The spelling of 2005188904 in words is "two billion, five million, one hundred eighty-eight thousand, nine hundred four".