4220224 is nontrivially palindromic in base 10.
It is a d-powerful number, because it can be written as 43 + 210 + 213 + 0 + 214 + 222 + 44 .
It is a congruent number.
It is an unprimeable number.
Almost surely, 24220224 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 4220224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4535424).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4220224 is a wasteful number, since it uses less digits than its factorization.
4220224 is an evil number, because the sum of its binary digits is even.
The square root of 4220224 is about 2054.3183784409. The cubic root of 4220224 is about 161.6014181492.
The spelling of 4220224 in words is "four million, two hundred twenty thousand, two hundred twenty-four".