2011831992 has 192 divisors, whose sum is σ = 5855915520. Its totient is φ = 646714368.

The previous prime is 2011831979. The next prime is 2011832021. The reversal of 2011831992 is 2991381102.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 8862583 + ... + 8862809.

It is an arithmetic number, because the mean of its divisors is an integer number (30499560).

Almost surely, 2^2011831992 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 2011831992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927957760).

2011831992 is an abundant number, since it is smaller than the sum of its proper divisors (3844083528).

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

2011831992 is a wasteful number, since it uses less digits than its factorization.

2011831992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 2011831992 is about 44853.4501682981. The cubic root of 2011831992 is about 1262.4007290111.

The spelling of 2011831992 in words is "two billion, eleven million, eight hundred thirty-one thousand, nine hundred ninety-two".