2001899170 has 16 divisors (see below), whose sum is σ = 3625528320. Its totient is φ = 795846384.

The previous prime is 2001899149. The next prime is 2001899177. The reversal of 2001899170 is 719981002.

It is not an unprimeable number, because it can be changed into a prime (2001899177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612450 + ... + 615709.

It is an arithmetic number, because the mean of its divisors is an integer number (226595520).

Almost surely, 2^2001899170 is an apocalyptic number.

2001899170 is a deficient number, since it is larger than the sum of its proper divisors (1623629150).

2001899170 is a wasteful number, since it uses less digits than its factorization.

2001899170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228329.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 2001899170 is about 44742.5878777703. The cubic root of 2001899170 is about 1260.3197244398.

The spelling of 2001899170 in words is "two billion, one million, eight hundred ninety-nine thousand, one hundred seventy".