204043134 has 16 divisors (see below), whose sum is σ = 408755088. Its totient is φ = 67902912.

The previous prime is 204043093. The next prime is 204043139. The reversal of 204043134 is 431340402.

It is a self number, because there is not a number n which added to its sum of digits gives 204043134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204043139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23857 + ... + 31260.

It is an arithmetic number, because the mean of its divisors is an integer number (25547193).

Almost surely, 2^204043134 is an apocalyptic number.

204043134 is an abundant number, since it is smaller than the sum of its proper divisors (204711954).

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

204043134 is a wasteful number, since it uses less digits than its factorization.

204043134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55739.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204043134 is about 14284.3667693041. The cubic root of 204043134 is about 588.7180189172.

Adding to 204043134 its reverse (431340402), we get a palindrome (635383536).

The spelling of 204043134 in words is "two hundred four million, forty-three thousand, one hundred thirty-four".