4021443402408 has 96 divisors (see below), whose sum is σ = 11272611823200. Its totient is φ = 1293610141824.

The previous prime is 4021443402407. The next prime is 4021443402433. The reversal of 4021443402408 is 8042043441204.

4021443402408 is a `hidden beast` number, since 4 + 0 + 214 + 4 + 34 + 0 + 2 + 408 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (4021443402407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3701491 + ... + 4663037.

It is an arithmetic number, because the mean of its divisors is an integer number (117423039825).

Almost surely, 2^{4021443402408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021443402408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5636305911600).

4021443402408 is an abundant number, since it is smaller than the sum of its proper divisors (7251168420792).

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

4021443402408 is a wasteful number, since it uses less digits than its factorization.

4021443402408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963591 (or 963584 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

The spelling of 4021443402408 in words is "four trillion, twenty-one billion, four hundred forty-three million, four hundred two thousand, four hundred eight".