Adding to 140440320 its reverse (23044041), we get a palindrome (163484361).
It is an unprimeable number.
Almost surely, 2140440320 is an apocalyptic number.
140440320 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 140440320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247757328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140440320 is a wasteful number, since it uses less digits than its factorization.
140440320 is an evil number, because the sum of its binary digits is even.
The square root of 140440320 is about 11850.7518748812. The cubic root of 140440320 is about 519.7932116630.
The spelling of 140440320 in words is "one hundred forty million, four hundred forty thousand, three hundred twenty".