4024442421405 has 64 divisors (see below), whose sum is σ = 8253062369280. Its totient is φ = 1822551181632.

The previous prime is 4024442421379. The next prime is 4024442421451. The reversal of 4024442421405 is 5041242444204.

4024442421405 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 4 + 4 + 242 + 1 + 405 = 666.

It is not a de Polignac number, because 4024442421405 - 2²⁰ = 4024441372829 is a prime.

It is a super-2 number, since 2×4024442421405² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4024442421405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19799209 + ... + 20001438.

It is an arithmetic number, because the mean of its divisors is an integer number (128954099520).

Almost surely, 2^{4024442421405} is an apocalyptic number.

4024442421405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4024442421405 is an abundant number, since it is smaller than the sum of its proper divisors (4228619947875).

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

4024442421405 is a wasteful number, since it uses less digits than its factorization.

4024442421405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39800775 (or 39800769 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 4024442421405 its reverse (5041242444204), we get a palindrome (9065684865609).

The spelling of 4024442421405 in words is "four trillion, twenty-four billion, four hundred forty-two million, four hundred twenty-one thousand, four hundred five".