204384140 has 24 divisors (see below), whose sum is σ = 451797360. Its totient is φ = 77450688.

The previous prime is 204384137. The next prime is 204384157. The reversal of 204384140 is 41483402.

204384140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268547 + ... + 269306.

It is an arithmetic number, because the mean of its divisors is an integer number (18824890).

Almost surely, 2^204384140 is an apocalyptic number.

204384140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204384140 is an abundant number, since it is smaller than the sum of its proper divisors (247413220).

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

204384140 is a wasteful number, since it uses less digits than its factorization.

204384140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537881 (or 537879 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 204384140 is about 14296.2981222413. The cubic root of 204384140 is about 589.0458003343.

The spelling of 204384140 in words is "two hundred four million, three hundred eighty-four thousand, one hundred forty".