198305560 has 16 divisors (see below), whose sum is σ = 446187600. Its totient is φ = 79322208.

The previous prime is 198305557. The next prime is 198305593. The reversal of 198305560 is 65503891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478780 + ... + 2478859.

It is an arithmetic number, because the mean of its divisors is an integer number (27886725).

Almost surely, 2^198305560 is an apocalyptic number.

198305560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198305560 is an abundant number, since it is smaller than the sum of its proper divisors (247882040).

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

198305560 is a wasteful number, since it uses less digits than its factorization.

198305560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957650 (or 4957646 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 198305560 is about 14082.1006955639. The cubic root of 198305560 is about 583.1473373454.

The spelling of 198305560 in words is "one hundred ninety-eight million, three hundred five thousand, five hundred sixty".