204580540 has 12 divisors (see below), whose sum is σ = 429619176. Its totient is φ = 81832208.

The previous prime is 204580531. The next prime is 204580591. The reversal of 204580540 is 45085402.

204580540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204580499 and 204580508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5114494 + ... + 5114533.

It is an arithmetic number, because the mean of its divisors is an integer number (35801598).

Almost surely, 2^204580540 is an apocalyptic number.

204580540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204580540 is an abundant number, since it is smaller than the sum of its proper divisors (225038636).

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

204580540 is a wasteful number, since it uses less digits than its factorization.

204580540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10229036 (or 10229034 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 204580540 is about 14303.1653839281. The cubic root of 204580540 is about 589.2344182941.

It can be divided in two parts, 204580 and 540, that added together give a triangular number (205120 = T₆₄₀).

The spelling of 204580540 in words is "two hundred four million, five hundred eighty thousand, five hundred forty".