204255306 has 24 divisors (see below), whose sum is σ = 468586404. Its totient is φ = 64080000.

The previous prime is 204255287. The next prime is 204255319. The reversal of 204255306 is 603552402.

It can be written as a sum of positive squares in 2 ways, for example, as 199233225 + 5022081 = 14115^2 + 2241^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 204255306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 333445 + ... + 334056.

Almost surely, 2^204255306 is an apocalyptic number.

204255306 is an abundant number, since it is smaller than the sum of its proper divisors (264331098).

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

204255306 is a wasteful number, since it uses less digits than its factorization.

204255306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667526 (or 667523 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 204255306 is about 14291.7915601929. The cubic root of 204255306 is about 588.9220055398.

The spelling of 204255306 in words is "two hundred four million, two hundred fifty-five thousand, three hundred six".