2097381880 has 128 divisors (see below), whose sum is σ = 5594572800. Its totient is φ = 699148800.

The previous prime is 2097381791. The next prime is 2097381931. The reversal of 2097381880 is 881837902.

It is a self number, because there is not a number n which added to its sum of digits gives 2097381880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255114 + ... + 263206.

It is an arithmetic number, because the mean of its divisors is an integer number (43707600).

Almost surely, 2^2097381880 is an apocalyptic number.

2097381880 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 2097381880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2797286400).

2097381880 is an abundant number, since it is smaller than the sum of its proper divisors (3497190920).

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

2097381880 is a wasteful number, since it uses less digits than its factorization.

2097381880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8165 (or 8161 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 2097381880 is about 45797.1820093770. The cubic root of 2097381880 is about 1280.0467674970.

It can be divided in two parts, 209 and 7381880, that added together give a square (7382089 = 2717²).

The spelling of 2097381880 in words is "two billion, ninety-seven million, three hundred eighty-one thousand, eight hundred eighty".