It is an alternating number because its digits alternate between even and odd.
It is a Curzon number.
It is a nialpdrome in base 15.
It is a self number, because there is not a number n which added to its sum of digits gives 49830.
It is a congruent number.
249830 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 49830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65664).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
49830 is a wasteful number, since it uses less digits than its factorization.
49830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 172.
The square root of 49830 is about 223.2263425315. The cubic root of 49830 is about 36.7985152205.
The spelling of 49830 in words is "forty-nine thousand, eight hundred thirty".