204323028 has 144 divisors (see below), whose sum is σ = 607501440. Its totient is φ = 52296192.

The previous prime is 204323011. The next prime is 204323039. The reversal of 204323028 is 820323402.

204323028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204322989 and 204323007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525058 + ... + 525446.

It is an arithmetic number, because the mean of its divisors is an integer number (4218760).

Almost surely, 2^204323028 is an apocalyptic number.

204323028 is a gapful number since it is divisible by the number (28) 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 204323028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303750720).

204323028 is an abundant number, since it is smaller than the sum of its proper divisors (403178412).

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

204323028 is a wasteful number, since it uses less digits than its factorization.

204323028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 204323028 is about 14294.1606259339. The cubic root of 204323028 is about 588.9870851532.

The spelling of 204323028 in words is "two hundred four million, three hundred twenty-three thousand, twenty-eight".