It is a happy number.
It is a tau number, because it is divible by the number of its divisors (576).
It is a congruent number.
Almost surely, 21440270720 is an apocalyptic number.
1440270720 is a gapful number since it is divisible by the number (10) 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 1440270720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3011346000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1440270720 is an frugal number, since it uses more digits than its factorization.
1440270720 is an odious number, because the sum of its binary digits is odd.
The square root of 1440270720 is about 37950.8988035857. The cubic root of 1440270720 is about 1129.3139961324.
The spelling of 1440270720 in words is "one billion, four hundred forty million, two hundred seventy thousand, seven hundred twenty".