2081898000 has 960 divisors, whose sum is σ = 9463394304. Its totient is φ = 414720000.

The previous prime is 2081897999. The next prime is 2081898017. The reversal of 2081898000 is 8981802.

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 polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 50777980 + ... + 50778020.

Almost surely, 2^2081898000 is an apocalyptic number.

2081898000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081898000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4731697152).

2081898000 is an abundant number, since it is smaller than the sum of its proper divisors (7381496304).

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

2081898000 is a wasteful number, since it uses less digits than its factorization.

2081898000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 2081898000 is about 45627.8204607671. The cubic root of 2081898000 is about 1276.8890107448.

The spelling of 2081898000 in words is "two billion, eighty-one million, eight hundred ninety-eight thousand".