1080198188 has 24 divisors (see below), whose sum is σ = 1930119408. Its totient is φ = 528851456.

The previous prime is 1080198181. The next prime is 1080198191. The reversal of 1080198188 is 8818910801.

It is not an unprimeable number, because it can be changed into a prime (1080198181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23120 + ... + 51912.

It is an arithmetic number, because the mean of its divisors is an integer number (80421642).

Almost surely, 2^1080198188 is an apocalyptic number.

It is an amenable number.

1080198188 is a deficient number, since it is larger than the sum of its proper divisors (849921220).

1080198188 is a wasteful number, since it uses less digits than its factorization.

1080198188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28993 (or 28991 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 44.

The square root of 1080198188 is about 32866.3686463838. The cubic root of 1080198188 is about 1026.0483228181.

The spelling of 1080198188 in words is "one billion, eighty million, one hundred ninety-eight thousand, one hundred eighty-eight".