1980195882 has 32 divisors (see below), whose sum is σ = 4536705024. Its totient is φ = 564452400.

The previous prime is 1980195871. The next prime is 1980195923. The reversal of 1980195882 is 2885910891.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36594 + ... + 72797.

It is an arithmetic number, because the mean of its divisors is an integer number (141772032).

Almost surely, 2^1980195882 is an apocalyptic number.

1980195882 is an abundant number, since it is smaller than the sum of its proper divisors (2556509142).

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

1980195882 is a wasteful number, since it uses less digits than its factorization.

1980195882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109834.

The product of its (nonzero) digits is 414720, while the sum is 51.

The square root of 1980195882 is about 44499.3919284298. The cubic root of 1980195882 is about 1255.7486434442.

The spelling of 1980195882 in words is "one billion, nine hundred eighty million, one hundred ninety-five thousand, eight hundred eighty-two".