204603630 has 128 divisors (see below), whose sum is σ = 639000576. Its totient is φ = 40656000.

The previous prime is 204603587. The next prime is 204603649. The reversal of 204603630 is 36306402.

It is a self number, because there is not a number n which added to its sum of digits gives 204603630.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 51205 + ... + 55055.

It is an arithmetic number, because the mean of its divisors is an integer number (4992192).

Almost surely, 2^204603630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204603630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319500288).

204603630 is an abundant number, since it is smaller than the sum of its proper divisors (434396946).

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

204603630 is a wasteful number, since it uses less digits than its factorization.

204603630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 204603630 is about 14303.9725251414. The cubic root of 204603630 is about 589.2565854577.

It can be divided in two parts, 20460 and 3630, that added together give a triangular number (24090 = T₂₁₉).

The spelling of 204603630 in words is "two hundred four million, six hundred three thousand, six hundred thirty".