Adding to 428000 its reverse (824), we get a palindrome (428824).
It is a congruent number.
2428000 is an apocalyptic number.
428000 is a gapful number since it is divisible by the number (40) 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 428000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
428000 is a wasteful number, since it uses less digits than its factorization.
428000 is an odious number, because the sum of its binary digits is odd.
The square root of 428000 is about 654.2170893518. The cubic root of 428000 is about 75.3612204339.
The spelling of 428000 in words is "four hundred twenty-eight thousand".