198049816 has 16 divisors (see below), whose sum is σ = 384148800. Its totient is φ = 95610144.

The previous prime is 198049807. The next prime is 198049823. The reversal of 198049816 is 618940891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426600 + ... + 427063.

It is an arithmetic number, because the mean of its divisors is an integer number (24009300).

Almost surely, 2^198049816 is an apocalyptic number.

It is an amenable number.

198049816 is a deficient number, since it is larger than the sum of its proper divisors (186098984).

198049816 is a wasteful number, since it uses less digits than its factorization.

198049816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853698 (or 853694 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 198049816 is about 14073.0173026256. The cubic root of 198049816 is about 582.8965449325.

The spelling of 198049816 in words is "one hundred ninety-eight million, forty-nine thousand, eight hundred sixteen".