198081480 has 128 divisors (see below), whose sum is σ = 613370880. Its totient is φ = 51152640.

The previous prime is 198081437. The next prime is 198081487. The reversal of 198081480 is 84180891.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (198081487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570667 + ... + 571013.

It is an arithmetic number, because the mean of its divisors is an integer number (4791960).

Almost surely, 2^198081480 is an apocalyptic number.

198081480 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 198081480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306685440).

198081480 is an abundant number, since it is smaller than the sum of its proper divisors (415289400).

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

198081480 is a wasteful number, since it uses less digits than its factorization.

198081480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The square root of 198081480 is about 14074.1422473982. The cubic root of 198081480 is about 582.9276075763.

The spelling of 198081480 in words is "one hundred ninety-eight million, eighty-one thousand, four hundred eighty".