It is a tau number, because it is divible by the number of its divisors (288).
It is a congruent number.
It is an unprimeable number.
Almost surely, 220069280 is an apocalyptic number.
20069280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20069280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42928704).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20069280 is a wasteful number, since it uses less digits than its factorization.
20069280 is an odious number, because the sum of its binary digits is odd.
The square root of 20069280 is about 4479.8749982561. The cubic root of 20069280 is about 271.7548252074.
The spelling of 20069280 in words is "twenty million, sixty-nine thousand, two hundred eighty".