204020828 has 12 divisors (see below), whose sum is σ = 389494392. Its totient is φ = 92736720.

The previous prime is 204020821. The next prime is 204020851. The reversal of 204020828 is 828020402.

It is a junction number, because it is equal to n+sod(n) for n = 204020797 and 204020806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204020821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318375 + ... + 2318462.

It is an arithmetic number, because the mean of its divisors is an integer number (32457866).

Almost surely, 2^204020828 is an apocalyptic number.

It is an amenable number.

204020828 is a deficient number, since it is larger than the sum of its proper divisors (185473564).

204020828 is a wasteful number, since it uses less digits than its factorization.

204020828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636852 (or 4636850 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 204020828 is about 14283.5859643158. The cubic root of 204020828 is about 588.6965652464.

The spelling of 204020828 in words is "two hundred four million, twenty thousand, eight hundred twenty-eight".