It is a tau number, because it is divible by the number of its divisors (56).
It is a congruent number.
It is an unprimeable number.
269440 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 69440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69440 is a wasteful number, since it uses less digits than its factorization.
69440 is an evil number, because the sum of its binary digits is even.
The square root of 69440 is about 263.5147054720. The cubic root of 69440 is about 41.1026576781.
The spelling of 69440 in words is "sixty-nine thousand, four hundred forty".