198385860 has 48 divisors (see below), whose sum is σ = 570499776. Its totient is φ = 51472512.

The previous prime is 198385849. The next prime is 198385867. The reversal of 198385860 is 68583891.

It is not an unprimeable number, because it can be changed into a prime (198385867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42462 + ... + 46901.

It is an arithmetic number, because the mean of its divisors is an integer number (11885412).

Almost surely, 2^198385860 is an apocalyptic number.

198385860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198385860 is an abundant number, since it is smaller than the sum of its proper divisors (372113916).

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

198385860 is a wasteful number, since it uses less digits than its factorization.

198385860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89412 (or 89410 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 198385860 is about 14084.9515441126. The cubic root of 198385860 is about 583.2260381344.

The spelling of 198385860 in words is "one hundred ninety-eight million, three hundred eighty-five thousand, eight hundred sixty".