2091841950 has 144 divisors (see below), whose sum is σ = 5951369088. Its totient is φ = 484968000.

The previous prime is 2091841943. The next prime is 2091841979. The reversal of 2091841950 is 591481902.

It is a junction number, because it is equal to n+sod(n) for n = 2091841899 and 2091841908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 414945 + ... + 419955.

It is an arithmetic number, because the mean of its divisors is an integer number (41328952).

Almost surely, 2^2091841950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2091841950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2975684544).

2091841950 is an abundant number, since it is smaller than the sum of its proper divisors (3859527138).

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

2091841950 is a wasteful number, since it uses less digits than its factorization.

2091841950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071 (or 5055 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 2091841950 is about 45736.6587104917. The cubic root of 2091841950 is about 1278.9187544660.

The spelling of 2091841950 in words is "two billion, ninety-one million, eight hundred forty-one thousand, nine hundred fifty".