The square root of 4080400 is 2020.
It is a Duffinian number.
Almost surely, 24080400 is an apocalyptic number.
4080400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
4080400 is the 2020-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 4080400
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4080400 is a wasteful number, since it uses less digits than its factorization.
4080400 is an odious number, because the sum of its binary digits is odd.
The cubic root of 4080400 is about 159.7966165794.
Multiplying 4080400 by its sum of digits (16), we get a square (65286400 = 80802).
4080400 divided by its sum of digits (16) gives a square (255025 = 5052).
Multiplying 4080400 by its reverse (40804), we get a square (166496641600 = 4080402).
4080400 divided by its reverse (40804) gives a square (100 = 102).
The spelling of 4080400 in words is "four million, eighty thousand, four hundred".