204340400 has 60 divisors (see below), whose sum is σ = 535569144. Its totient is φ = 74304000.

The previous prime is 204340399. The next prime is 204340403. The reversal of 204340400 is 4043402.

It is not an unprimeable number, because it can be changed into a prime (204340403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18821 + ... + 27620.

Almost surely, 2^204340400 is an apocalyptic number.

204340400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204340400 is an abundant number, since it is smaller than the sum of its proper divisors (331228744).

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

204340400 is a wasteful number, since it uses less digits than its factorization.

204340400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46470 (or 46459 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 204340400 is about 14294.7682737427. The cubic root of 204340400 is about 589.0037770124.

Adding to 204340400 its reverse (4043402), we get a palindrome (208383802).

The spelling of 204340400 in words is "two hundred four million, three hundred forty thousand, four hundred".