204639036 has 48 divisors (see below), whose sum is σ = 559023360. Its totient is φ = 57041280.

The previous prime is 204639031. The next prime is 204639041. The reversal of 204639036 is 630936402.

It is an interprime number because it is at equal distance from previous prime (204639031) and next prime (204639041).

It is a junction number, because it is equal to n+sod(n) for n = 204638988 and 204639006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204639031) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 26266 + ... + 33153.

It is an arithmetic number, because the mean of its divisors is an integer number (11646320).

Almost surely, 2^204639036 is an apocalyptic number.

It is an amenable number.

204639036 is an abundant number, since it is smaller than the sum of its proper divisors (354384324).

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

204639036 is a wasteful number, since it uses less digits than its factorization.

204639036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59474 (or 59472 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 204639036 is about 14305.2100998203. The cubic root of 204639036 is about 589.2905731495.

The spelling of 204639036 in words is "two hundred four million, six hundred thirty-nine thousand, thirty-six".