204043120 has 80 divisors (see below), whose sum is σ = 498664512. Its totient is φ = 77496320.

The previous prime is 204043093. The next prime is 204043139. The reversal of 204043120 is 21340402.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 204043094 and 204043103.

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, 318000 + ... + 318640.

Almost surely, 2^204043120 is an apocalyptic number.

204043120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204043120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249332256).

204043120 is an abundant number, since it is smaller than the sum of its proper divisors (294621392).

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

204043120 is a wasteful number, since it uses less digits than its factorization.

204043120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204043120 is about 14284.3662792579. The cubic root of 204043120 is about 588.7180054527.

Adding to 204043120 its reverse (21340402), we get a palindrome (225383522).

The spelling of 204043120 in words is "two hundred four million, forty-three thousand, one hundred twenty".