198530894 has 16 divisors (see below), whose sum is σ = 311057280. Its totient is φ = 94853880.

The previous prime is 198530881. The next prime is 198530921. The reversal of 198530894 is 498035891.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69017 + ... + 71835.

It is an arithmetic number, because the mean of its divisors is an integer number (19441080).

Almost surely, 2^198530894 is an apocalyptic number.

198530894 is a deficient number, since it is larger than the sum of its proper divisors (112526386).

198530894 is a wasteful number, since it uses less digits than its factorization.

198530894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 198530894 is about 14090.0991479833. The cubic root of 198530894 is about 583.3681299152.

The spelling of 198530894 in words is "one hundred ninety-eight million, five hundred thirty thousand, eight hundred ninety-four".