198345860 has 48 divisors (see below), whose sum is σ = 422876160. Its totient is φ = 78140160.

The previous prime is 198345841. The next prime is 198345869. The reversal of 198345860 is 68543891.

It is not an unprimeable number, because it can be changed into a prime (198345869) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 523151 + ... + 523529.

It is an arithmetic number, because the mean of its divisors is an integer number (8809920).

Almost surely, 2^198345860 is an apocalyptic number.

198345860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198345860 is an abundant number, since it is smaller than the sum of its proper divisors (224530300).

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

198345860 is a wasteful number, since it uses less digits than its factorization.

198345860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 198345860 is about 14083.5315173432. The cubic root of 198345860 is about 583.1868374077.

The spelling of 198345860 in words is "one hundred ninety-eight million, three hundred forty-five thousand, eight hundred sixty".