It is a happy number.
It is a Curzon number.
It is a plaindrome in base 16.
It is a congruent number.
2349566 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 349566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
349566 is a wasteful number, since it uses less digits than its factorization.
349566 is an evil number, because the sum of its binary digits is even.
The square root of 349566 is about 591.2410675858. The cubic root of 349566 is about 70.4438464377.
The spelling of 349566 in words is "three hundred forty-nine thousand, five hundred sixty-six".