It is a congruent number.
It is an unprimeable number.
22150400 is an apocalyptic number.
2150400 is a gapful number since it is divisible by the number (20) 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 2150400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4062736).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2150400 is an equidigital number, since it uses as much as digits as its factorization.
2150400 is an evil number, because the sum of its binary digits is even.
The square root of 2150400 is about 1466.4242223859. The cubic root of 2150400 is about 129.0742916820.
Adding to 2150400 its reverse (40512), we get a palindrome (2190912).
The spelling of 2150400 in words is "two million, one hundred fifty thousand, four hundred".