4021444440140 has 48 divisors (see below), whose sum is σ = 8462288134944. Its totient is φ = 1605291916800.

The previous prime is 4021444440137. The next prime is 4021444440157. The reversal of 4021444440140 is 410444441204.

It is a junction number, because it is equal to n+sod(n) for n = 4021444440097 and 4021444440106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107630342 + ... + 107667698.

It is an arithmetic number, because the mean of its divisors is an integer number (176297669478).

Almost surely, 2^{4021444440140} is an apocalyptic number.

It is an amenable number.

4021444440140 is an abundant number, since it is smaller than the sum of its proper divisors (4440843694804).

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

4021444440140 is a wasteful number, since it uses less digits than its factorization.

4021444440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48218 (or 48216 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 4021444440140 its reverse (410444441204), we get a palindrome (4431888881344).

The spelling of 4021444440140 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty thousand, one hundred forty".