198394560 has 336 divisors, whose sum is σ = 840979776. Its totient is φ = 41803776.

The previous prime is 198394549. The next prime is 198394589. The reversal of 198394560 is 65493891.

It is a happy number.

198394560 is a `hidden beast` number, since 1 + 9 + 83 + 9 + 4 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 261702 + ... + 262458.

It is an arithmetic number, because the mean of its divisors is an integer number (2502916).

Almost surely, 2^198394560 is an apocalyptic number.

198394560 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 198394560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420489888).

198394560 is an abundant number, since it is smaller than the sum of its proper divisors (642585216).

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

198394560 is a wasteful number, since it uses less digits than its factorization.

198394560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 198394560 is about 14085.2603809798. The cubic root of 198394560 is about 583.2345635948.

The spelling of 198394560 in words is "one hundred ninety-eight million, three hundred ninety-four thousand, five hundred sixty".