Adding to 5401440 its reverse (441045), we get a palindrome (5842485).
It is a congruent number.
Almost surely, 25401440 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 5401440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10456992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5401440 is a wasteful number, since it uses less digits than its factorization.
5401440 is an evil number, because the sum of its binary digits is even.
The square root of 5401440 is about 2324.0998257390. The cubic root of 5401440 is about 175.4566576680.
The spelling of 5401440 in words is "five million, four hundred one thousand, four hundred forty".