204050028 has 48 divisors (see below), whose sum is σ = 585992960. Its totient is φ = 53815104.

The previous prime is 204050027. The next prime is 204050051. The reversal of 204050028 is 820050402.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 204049986 and 204050013.

It is not an unprimeable number, because it can be changed into a prime (204050027) by changing a digit.

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, 92338 + ... + 94521.

Almost surely, 2^204050028 is an apocalyptic number.

204050028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

204050028 is an abundant number, since it is smaller than the sum of its proper divisors (381942932).

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

204050028 is a wasteful number, since it uses less digits than its factorization.

204050028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186886 (or 186884 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 204050028 is about 14284.6080800280. The cubic root of 204050028 is about 588.7246491760.

The spelling of 204050028 in words is "two hundred four million, fifty thousand, twenty-eight".