204216 has 32 divisors (see below), whose sum is σ = 522240. Its totient is φ = 66528.
The previous prime is 204173. The next prime is 204233. The reversal of 204216 is 612402.
It is a junction number, because it is equal to n+sod(n) for n = 204195 and 204204.
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, 1545 + ... + 1671.
It is an arithmetic number, because the mean of its divisors is an integer number (16320).
2204216 is an apocalyptic number.
It is an amenable number.
204216 is an abundant number, since it is smaller than the sum of its proper divisors (318024).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
204216 is a wasteful number, since it uses less digits than its factorization.
204216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 203 (or 199 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 204216 is about 451.9026443826. The cubic root of 204216 is about 58.8884226589. Note that the first 3 decimals are identical.
Adding to 204216 its reverse (612402), we get a palindrome (816618).
The spelling of 204216 in words is "two hundred four thousand, two hundred sixteen".
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