4021433244444 has 192 divisors, whose sum is σ = 12526057313280. Its totient is φ = 972039045120.

The previous prime is 4021433244443. The next prime is 4021433244463. The reversal of 4021433244444 is 4444423341204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021433244443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40257 + ... + 2836280.

It is an arithmetic number, because the mean of its divisors is an integer number (65239881840).

Almost surely, 2^{4021433244444} is an apocalyptic number.

4021433244444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021433244444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6263028656640).

4021433244444 is an abundant number, since it is smaller than the sum of its proper divisors (8504624068836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021433244444 is a wasteful number, since it uses less digits than its factorization.

4021433244444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876668 (or 2876666 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 4021433244444 its reverse (4444423341204), we get a palindrome (8465856585648).

The spelling of 4021433244444 in words is "four trillion, twenty-one billion, four hundred thirty-three million, two hundred forty-four thousand, four hundred forty-four".