4424202003421 has 4 divisors (see below), whose sum is σ = 4424212830492. Its totient is φ = 4424191176352.

The previous prime is 4424202003413. The next prime is 4424202003443. The reversal of 4424202003421 is 1243002024244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4287131750521 + 137070252900 = 2070539^2 + 370230^2 .

It is a cyclic number.

It is not a de Polignac number, because 4424202003421 - 2³ = 4424202003413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4424202003421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424202003521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4775536 + ... + 5626201.

It is an arithmetic number, because the mean of its divisors is an integer number (1106053207623).

Almost surely, 2^{4424202003421} is an apocalyptic number.

It is an amenable number.

4424202003421 is a deficient number, since it is larger than the sum of its proper divisors (10827071).

4424202003421 is a wasteful number, since it uses less digits than its factorization.

4424202003421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10827070.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 4424202003421 its reverse (1243002024244), we get a palindrome (5667204027665).

The spelling of 4424202003421 in words is "four trillion, four hundred twenty-four billion, two hundred two million, three thousand, four hundred twenty-one".