1980739200 has 192 divisors, whose sum is σ = 7117535520. Its totient is φ = 480153600.

The previous prime is 1980739199. The next prime is 1980739213. The reversal of 1980739200 is 29370891.

It is a tau number, because it is divible by the number of its divisors (192).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96222 + ... + 114978.

Almost surely, 2^1980739200 is an apocalyptic number.

1980739200 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 1980739200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3558767760).

1980739200 is an abundant number, since it is smaller than the sum of its proper divisors (5136796320).

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

1980739200 is a wasteful number, since it uses less digits than its factorization.

1980739200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18795 (or 18778 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1980739200 is about 44505.4962897843. The cubic root of 1980739200 is about 1255.8634819908.

The spelling of 1980739200 in words is "one billion, nine hundred eighty million, seven hundred thirty-nine thousand, two hundred".