204043100 has 18 divisors (see below), whose sum is σ = 442773744. Its totient is φ = 81617200.

The previous prime is 204043093. The next prime is 204043139. The reversal of 204043100 is 1340402.

204043100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×204043100² = 83267173315220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1020116 + ... + 1020315.

Almost surely, 2^204043100 is an apocalyptic number.

204043100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204043100 is an abundant number, since it is smaller than the sum of its proper divisors (238730644).

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

204043100 is a wasteful number, since it uses less digits than its factorization.

204043100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040445 (or 2040438 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 204043100 is about 14284.3655791918. The cubic root of 204043100 is about 588.7179862176.

Adding to 204043100 its reverse (1340402), we get a palindrome (205383502).

The spelling of 204043100 in words is "two hundred four million, forty-three thousand, one hundred".