204124404 has 48 divisors (see below), whose sum is σ = 532276416. Its totient is φ = 60345600.

The previous prime is 204124399. The next prime is 204124421. The reversal of 204124404 is 404421402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13447 + ... + 24270.

It is an arithmetic number, because the mean of its divisors is an integer number (11089092).

Almost surely, 2^204124404 is an apocalyptic number.

It is an amenable number.

204124404 is an abundant number, since it is smaller than the sum of its proper divisors (328152012).

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

204124404 is a wasteful number, since it uses less digits than its factorization.

204124404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37776 (or 37774 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 204124404 is about 14287.2112044303. The cubic root of 204124404 is about 588.7961703056.

Adding to 204124404 its reverse (404421402), we get a palindrome (608545806).

The spelling of 204124404 in words is "two hundred four million, one hundred twenty-four thousand, four hundred four".