4444444 is nontrivially palindromic in base 10.
It is a nude number because it is divisible by every one of its digits.
4444444 is a nontrivial repdigit in base 10.
It is a plaindrome in base 10.
It is a nialpdrome in base 10.
It is a zygodrome in base 10.
It is a congruent number.
It is an unprimeable number.
It is a Kaprekar number, because its square (19753082469136) can be partitioned into two parts whose sum is 4444444.
Almost surely, 24444444 is an apocalyptic number.
It is an amenable number.
4444444 is a wasteful number, since it uses less digits than its factorization.
4444444 is an evil number, because the sum of its binary digits is even.
The square root of 4444444 is about 2108.1850013697. The cubic root of 4444444 is about 164.4141328082.
The spelling of 4444444 in words is "four million, four hundred forty-four thousand, four hundred forty-four".