204367828 has 18 divisors (see below), whose sum is σ = 416034906. Its totient is φ = 87586128.

The previous prime is 204367817. The next prime is 204367831. The reversal of 204367828 is 828763402.

It can be written as a sum of positive squares in only one way, i.e., 193265604 + 11102224 = 13902^2 + 3332^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521151 + ... + 521542.

Almost surely, 2^204367828 is an apocalyptic number.

204367828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

204367828 is an abundant number, since it is smaller than the sum of its proper divisors (211667078).

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

204367828 is a wasteful number, since it uses less digits than its factorization.

204367828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042711 (or 1042702 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 204367828 is about 14295.7276135215. The cubic root of 204367828 is about 589.0301292378.

The spelling of 204367828 in words is "two hundred four million, three hundred sixty-seven thousand, eight hundred twenty-eight".