204255216 has 160 divisors (see below), whose sum is σ = 652458240. Its totient is φ = 60652800.

The previous prime is 204255179. The next prime is 204255223. The reversal of 204255216 is 612552402.

204255216 is a `hidden beast` number, since 20 + 425 + 5 + 216 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 204255216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251451 + ... + 252261.

It is an arithmetic number, because the mean of its divisors is an integer number (4077864).

Almost surely, 2^204255216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204255216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326229120).

204255216 is an abundant number, since it is smaller than the sum of its proper divisors (448203024).

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

204255216 is a wasteful number, since it uses less digits than its factorization.

204255216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 204255216 is about 14291.7884115320. The cubic root of 204255216 is about 588.9219190418.

The spelling of 204255216 in words is "two hundred four million, two hundred fifty-five thousand, two hundred sixteen".