198291800 has 48 divisors (see below), whose sum is σ = 526893360. Its totient is φ = 67985280.

The previous prime is 198291799. The next prime is 198291833. The reversal of 198291800 is 8192891.

198291800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69419 + ... + 72218.

It is an arithmetic number, because the mean of its divisors is an integer number (10976945).

Almost surely, 2^198291800 is an apocalyptic number.

198291800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198291800 is an abundant number, since it is smaller than the sum of its proper divisors (328601560).

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

198291800 is a wasteful number, since it uses less digits than its factorization.

198291800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141660 (or 141651 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 198291800 is about 14081.6121236171. The cubic root of 198291800 is about 583.1338492500.

The spelling of 198291800 in words is "one hundred ninety-eight million, two hundred ninety-one thousand, eight hundred".