204354560 has 88 divisors (see below), whose sum is σ = 495210240. Its totient is φ = 80912384.

The previous prime is 204354541. The next prime is 204354581. The reversal of 204354560 is 65453402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 854921 + ... + 855159.

Almost surely, 2^204354560 is an apocalyptic number.

204354560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204354560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247605120).

204354560 is an abundant number, since it is smaller than the sum of its proper divisors (290855680).

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

204354560 is a wasteful number, since it uses less digits than its factorization.

204354560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 204354560 is about 14295.2635512606. The cubic root of 204354560 is about 589.0173819267.

The spelling of 204354560 in words is "two hundred four million, three hundred fifty-four thousand, five hundred sixty".