Adding to 144442440 its reverse (44244441), we get a palindrome (188686881).
It is a congruent number.
It is an unprimeable number.
Almost surely, 2144442440 is an apocalyptic number.
144442440 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 144442440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245569500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144442440 is a wasteful number, since it uses less digits than its factorization.
144442440 is an evil number, because the sum of its binary digits is even.
The square root of 144442440 is about 12018.4208613278. The cubic root of 144442440 is about 524.6845451857.
The spelling of 144442440 in words is "one hundred forty-four million, four hundred forty-two thousand, four hundred forty".