4021444444435 has 16 divisors (see below), whose sum is σ = 5574109092192. Its totient is φ = 2752646464000.

The previous prime is 4021444444373. The next prime is 4021444444439. The reversal of 4021444444435 is 5344444441204.

It is a happy number.

It is not a de Polignac number, because 4021444444435 - 2¹¹ = 4021444442387 is a prime.

It is a super-3 number, since 3×4021444444435³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021444444391 and 4021444444400.

It is not an unprimeable number, because it can be changed into a prime (4021444444439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2150504116 + ... + 2150505985.

It is an arithmetic number, because the mean of its divisors is an integer number (348381818262).

Almost surely, 2^{4021444444435} is an apocalyptic number.

4021444444435 is a deficient number, since it is larger than the sum of its proper divisors (1552664647757).

4021444444435 is a wasteful number, since it uses less digits than its factorization.

4021444444435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301010134.

The product of its (nonzero) digits is 1966080, while the sum is 43.

Adding to 4021444444435 its reverse (5344444441204), we get a palindrome (9365888885639).

The spelling of 4021444444435 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty-four thousand, four hundred thirty-five".