Adding to 40042444020400 its reverse (402044424004), we get a palindrome (40444488444404).
40042444020400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
Almost surely, 240042444020400 is an apocalyptic number.
40042444020400 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 pseudoperfect number, because it is the sum of a subset of its proper divisors.
40042444020400 is a wasteful number, since it uses less digits than its factorization.
40042444020400 is an odious number, because the sum of its binary digits is odd.
The spelling of 40042444020400 in words is "forty trillion, forty-two billion, four hundred forty-four million, twenty thousand, four hundred".