It is a tau number, because it is divible by the number of its divisors (40).
It is a nialpdrome in base 4 and base 16.
It is a zygodrome in base 4.
It is a congruent number.
In principle, a polygon with 349520 sides can be constructed with ruler and compass.
2349520 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 349520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431892).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
349520 is a wasteful number, since it uses less digits than its factorization.
349520 is an evil number, because the sum of its binary digits is even.
The square root of 349520 is about 591.2021650840. The cubic root of 349520 is about 70.4407563592.
The spelling of 349520 in words is "three hundred forty-nine thousand, five hundred twenty".