2001909112 has 48 divisors (see below), whose sum is σ = 4372257960. Its totient is φ = 856812096.

The previous prime is 2001909109. The next prime is 2001909139. The reversal of 2001909112 is 2119091002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 331383 + ... + 337369.

Almost surely, 2^2001909112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001909112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2186128980).

2001909112 is an abundant number, since it is smaller than the sum of its proper divisors (2370348848).

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

2001909112 is a wasteful number, since it uses less digits than its factorization.

2001909112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860 (or 6849 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 2001909112 is about 44742.6989798336. The cubic root of 2001909112 is about 1260.3218108049.

The spelling of 2001909112 in words is "two billion, one million, nine hundred nine thousand, one hundred twelve".