198845100 has 54 divisors (see below), whose sum is σ = 623271740. Its totient is φ = 53025120.

The previous prime is 198845081. The next prime is 198845113. The reversal of 198845100 is 1548891.

198845100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 109570 + ... + 111369.

Almost surely, 2^198845100 is an apocalyptic number.

198845100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198845100 is an abundant number, since it is smaller than the sum of its proper divisors (424426640).

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

198845100 is a wasteful number, since it uses less digits than its factorization.

198845100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220959 (or 220949 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 198845100 is about 14101.2446259187. The cubic root of 198845100 is about 583.6757246155.

The spelling of 198845100 in words is "one hundred ninety-eight million, eight hundred forty-five thousand, one hundred".