198249100 has 54 divisors (see below), whose sum is σ = 500449740. Its totient is φ = 67969440.

The previous prime is 198249089. The next prime is 198249113. The reversal of 198249100 is 1942891.

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, 15330 + ... + 25129.

Almost surely, 2^198249100 is an apocalyptic number.

198249100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198249100 is an abundant number, since it is smaller than the sum of its proper divisors (302200640).

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

198249100 is a wasteful number, since it uses less digits than its factorization.

198249100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40487 (or 40473 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 198249100 is about 14080.0958803554. The cubic root of 198249100 is about 583.0919890506.

The spelling of 198249100 in words is "one hundred ninety-eight million, two hundred forty-nine thousand, one hundred".