204801128 has 32 divisors (see below), whose sum is σ = 453020160. Its totient is φ = 84939840.

The previous prime is 204801083. The next prime is 204801143. The reversal of 204801128 is 821108402.

It is a junction number, because it is equal to n+sod(n) for n = 204801097 and 204801106.

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, 57251 + ... + 60722.

It is an arithmetic number, because the mean of its divisors is an integer number (14156880).

Almost surely, 2^204801128 is an apocalyptic number.

204801128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

204801128 is an abundant number, since it is smaller than the sum of its proper divisors (248219032).

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

204801128 is a wasteful number, since it uses less digits than its factorization.

204801128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118017 (or 118013 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 204801128 is about 14310.8744666425. The cubic root of 204801128 is about 589.4461219647.

The spelling of 204801128 in words is "two hundred four million, eight hundred one thousand, one hundred twenty-eight".