4021404440444 has 24 divisors (see below), whose sum is σ = 7280219709840. Its totient is φ = 1941343399296.

The previous prime is 4021404440419. The next prime is 4021404440461. The reversal of 4021404440444 is 4440444041204.

It is a happy number.

4021404440444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12121544 + ... + 12448880.

It is an arithmetic number, because the mean of its divisors is an integer number (303342487910).

Almost surely, 2^{4021404440444} is an apocalyptic number.

It is an amenable number.

4021404440444 is a deficient number, since it is larger than the sum of its proper divisors (3258815269396).

4021404440444 is a wasteful number, since it uses less digits than its factorization.

4021404440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433277 (or 433275 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 35.

Adding to 4021404440444 its reverse (4440444041204), we get a palindrome (8461848481648).

The spelling of 4021404440444 in words is "four trillion, twenty-one billion, four hundred four million, four hundred forty thousand, four hundred forty-four".