4021444404044 has 6 divisors (see below), whose sum is σ = 7037527707084. Its totient is φ = 2010722202020.

The previous prime is 4021444404041. The next prime is 4021444404049. The reversal of 4021444404044 is 4404044441204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4021444403995 and 4021444404013.

It is not an unprimeable number, because it can be changed into a prime (4021444404041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502680550502 + ... + 502680550509.

It is an arithmetic number, because the mean of its divisors is an integer number (1172921284514).

Almost surely, 2^{4021444404044} is an apocalyptic number.

It is an amenable number.

4021444404044 is a deficient number, since it is larger than the sum of its proper divisors (3016083303040).

4021444404044 is a wasteful number, since it uses less digits than its factorization.

4021444404044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005361101015 (or 1005361101013 counting only the distinct ones).

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

Adding to 4021444404044 its reverse (4404044441204), we get a palindrome (8425488845248).

The spelling of 4021444404044 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred four thousand, forty-four".