4021444413432 has 96 divisors (see below), whose sum is σ = 11470811898000. Its totient is φ = 1269246620160.

The previous prime is 4021444413391. The next prime is 4021444413479. The reversal of 4021444413432 is 2343144441204.

4021444413432 is a `hidden beast` number, since 4 + 0 + 214 + 4 + 4 + 4 + 1 + 3 + 432 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1756044 + ... + 3335652.

Almost surely, 2^{4021444413432} 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 4021444413432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5735405949000).

4021444413432 is an abundant number, since it is smaller than the sum of its proper divisors (7449367484568).

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

4021444413432 is a wasteful number, since it uses less digits than its factorization.

4021444413432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581501 (or 1581494 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 4021444413432 its reverse (2343144441204), we get a palindrome (6364588854636).

The spelling of 4021444413432 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred thirteen thousand, four hundred thirty-two".