198186560 has 224 divisors, whose sum is σ = 571463424. Its totient is φ = 64512000.

The previous prime is 198186559. The next prime is 198186563. The reversal of 198186560 is 65681891.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198186563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2791325 + ... + 2791395.

It is an arithmetic number, because the mean of its divisors is an integer number (2551176).

Almost surely, 2^198186560 is an apocalyptic number.

198186560 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 198186560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285731712).

198186560 is an abundant number, since it is smaller than the sum of its proper divisors (373276864).

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

198186560 is a wasteful number, since it uses less digits than its factorization.

198186560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 198186560 is about 14077.8748396198. The cubic root of 198186560 is about 583.0306682034.

The spelling of 198186560 in words is "one hundred ninety-eight million, one hundred eighty-six thousand, five hundred sixty".