2009831888 has 20 divisors (see below), whose sum is σ = 3900568800. Its totient is φ = 1003233504.

The previous prime is 2009831867. The next prime is 2009831903. The reversal of 2009831888 is 8881389002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95270 + ... + 114437.

It is an arithmetic number, because the mean of its divisors is an integer number (195028440).

Almost surely, 2^2009831888 is an apocalyptic number.

It is an amenable number.

2009831888 is a deficient number, since it is larger than the sum of its proper divisors (1890736912).

2009831888 is a wasteful number, since it uses less digits than its factorization.

2009831888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210314 (or 210308 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The square root of 2009831888 is about 44831.1486357421. The cubic root of 2009831888 is about 1261.9822431140.

The spelling of 2009831888 in words is "two billion, nine million, eight hundred thirty-one thousand, eight hundred eighty-eight".