204196100 has 18 divisors (see below), whose sum is σ = 443105754. Its totient is φ = 81678400.

The previous prime is 204196099. The next prime is 204196127. The reversal of 204196100 is 1691402.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14638276 + 189557824 = 3826^2 + 13768^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1020881 + ... + 1021080.

Almost surely, 2^204196100 is an apocalyptic number.

204196100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204196100 is an abundant number, since it is smaller than the sum of its proper divisors (238909654).

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

204196100 is a wasteful number, since it uses less digits than its factorization.

204196100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041975 (or 2041968 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 204196100 is about 14289.7200812332. The cubic root of 204196100 is about 588.8650978614.

The spelling of 204196100 in words is "two hundred four million, one hundred ninety-six thousand, one hundred".