204047285 has 8 divisors (see below), whose sum is σ = 263691960. Its totient is φ = 150681024.

The previous prime is 204047269. The next prime is 204047293. The reversal of 204047285 is 582740402.

It can be written as a sum of positive squares in 4 ways, for example, as 37920964 + 166126321 = 6158^2 + 12889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204047285 - 2⁴ = 204047269 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1569530 + ... + 1569659.

It is an arithmetic number, because the mean of its divisors is an integer number (32961495).

Almost surely, 2^204047285 is an apocalyptic number.

It is an amenable number.

204047285 is a deficient number, since it is larger than the sum of its proper divisors (59644675).

204047285 is a wasteful number, since it uses less digits than its factorization.

204047285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139207.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 204047285 is about 14284.5120672706. The cubic root of 204047285 is about 588.7220111318.

Adding to 204047285 its reverse (582740402), we get a palindrome (786787687).

The spelling of 204047285 in words is "two hundred four million, forty-seven thousand, two hundred eighty-five".