Adding to 45444 its reverse (44454), we get a palindrome (89898).
Subtracting from 45444 its reverse (44454), we obtain a triangular number (990 = T44).
It is a self number, because there is not a number n which added to its sum of digits gives 45444.
It is an unprimeable number.
245444 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
45444 is a wasteful number, since it uses less digits than its factorization.
45444 is an evil number, because the sum of its binary digits is even.
The square root of 45444 is about 213.1759836379. The cubic root of 45444 is about 35.6855326671.
The spelling of 45444 in words is "forty-five thousand, four hundred forty-four".