1980241188 has 24 divisors (see below), whose sum is σ = 4769614080. Its totient is φ = 638787360.

The previous prime is 1980241169. The next prime is 1980241201. The reversal of 1980241188 is 8811420891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661243 + ... + 2661986.

It is an arithmetic number, because the mean of its divisors is an integer number (198733920).

Almost surely, 2^1980241188 is an apocalyptic number.

It is an amenable number.

1980241188 is an abundant number, since it is smaller than the sum of its proper divisors (2789372892).

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

1980241188 is a wasteful number, since it uses less digits than its factorization.

1980241188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323267 (or 5323265 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 42.

The square root of 1980241188 is about 44499.9009886539. The cubic root of 1980241188 is about 1255.7582203611.

The spelling of 1980241188 in words is "one billion, nine hundred eighty million, two hundred forty-one thousand, one hundred eighty-eight".