4021444432104 has 128 divisors (see below), whose sum is σ = 11133842273280. Its totient is φ = 1200181875200.

The previous prime is 4021444432079. The next prime is 4021444432123. The reversal of 4021444432104 is 4012344441204.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17637292 + ... + 17863844.

It is an arithmetic number, because the mean of its divisors is an integer number (86983142760).

Almost surely, 2^{4021444432104} is an apocalyptic number.

4021444432104 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 4021444432104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5566921136640).

4021444432104 is an abundant number, since it is smaller than the sum of its proper divisors (7112397841176).

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

4021444432104 is a wasteful number, since it uses less digits than its factorization.

4021444432104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227591 (or 227587 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 4021444432104 its reverse (4012344441204), we get a palindrome (8033788873308).

The spelling of 4021444432104 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred thirty-two thousand, one hundred four".