198681846 has 32 divisors (see below), whose sum is σ = 435321216. Its totient is φ = 59952000.

The previous prime is 198681793. The next prime is 198681853. The reversal of 198681846 is 648186891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9661 + ... + 22151.

It is an arithmetic number, because the mean of its divisors is an integer number (13603788).

Almost surely, 2^198681846 is an apocalyptic number.

198681846 is an abundant number, since it is smaller than the sum of its proper divisors (236639370).

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

198681846 is a wasteful number, since it uses less digits than its factorization.

198681846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12748.

The product of its digits is 663552, while the sum is 51.

The square root of 198681846 is about 14095.4547993316. The cubic root of 198681846 is about 583.5159461649.

The spelling of 198681846 in words is "one hundred ninety-eight million, six hundred eighty-one thousand, eight hundred forty-six".