It is a self number, because there is not a number n which added to its sum of digits gives 2133420.
22133420 is an apocalyptic number.
2133420 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 2133420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3169656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2133420 is a wasteful number, since it uses less digits than its factorization.
2133420 is an odious number, because the sum of its binary digits is odd.
The square root of 2133420 is about 1460.6231546843. The cubic root of 2133420 is about 128.7336611685.
Adding to 2133420 its reverse (243312), we get a palindrome (2376732).
The spelling of 2133420 in words is "two million, one hundred thirty-three thousand, four hundred twenty".