1980195360 has 384 divisors, whose sum is σ = 7763745024. Its totient is φ = 416808960.

The previous prime is 1980195331. The next prime is 1980195379. The reversal of 1980195360 is 635910891.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1166032 + ... + 1167728.

It is an arithmetic number, because the mean of its divisors is an integer number (20218086).

Almost surely, 2^1980195360 is an apocalyptic number.

1980195360 is a gapful number since it is divisible by the number (10) 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 1980195360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881872512).

1980195360 is an abundant number, since it is smaller than the sum of its proper divisors (5783549664).

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

1980195360 is a wasteful number, since it uses less digits than its factorization.

1980195360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1980195360 is about 44499.3860631807. The cubic root of 1980195360 is about 1255.7485331014.

The spelling of 1980195360 in words is "one billion, nine hundred eighty million, one hundred ninety-five thousand, three hundred sixty".