It is a Curzon number.
It is a congruent number.
15390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
215390 is an apocalyptic number.
15390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 15390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15390 is a wasteful number, since it uses less digits than its factorization.
15390 is an evil number, because the sum of its binary digits is even.
The square root of 15390 is about 124.0564387688. The cubic root of 15390 is about 24.8740330255.
The spelling of 15390 in words is "fifteen thousand, three hundred ninety".