4021443441090 has 160 divisors (see below), whose sum is σ = 11134797094080. Its totient is φ = 1040645563776.

The previous prime is 4021443441089. The next prime is 4021443441173. The reversal of 4021443441090 is 901443441204.

It is a happy number.

4021443441090 is a `hidden beast` number, since 4 + 0 + 214 + 4 + 344 + 10 + 90 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11181609 + ... + 11535651.

It is an arithmetic number, because the mean of its divisors is an integer number (69592481838).

Almost surely, 2^{4021443441090} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021443441090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5567398547040).

4021443441090 is an abundant number, since it is smaller than the sum of its proper divisors (7113353652990).

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

4021443441090 is a wasteful number, since it uses less digits than its factorization.

4021443441090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354478 (or 354469 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Adding to 4021443441090 its reverse (901443441204), we get a palindrome (4922886882294).

The spelling of 4021443441090 in words is "four trillion, twenty-one billion, four hundred forty-three million, four hundred forty-one thousand, ninety".