4424440200421 has 4 divisors (see below), whose sum is σ = 4456270705600. Its totient is φ = 4392609695244.

The previous prime is 4424440200409. The next prime is 4424440200473. The reversal of 4424440200421 is 1240020444244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4424440200421 - 2²⁹ = 4423903329509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4424440200121) 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, 15915252381 + ... + 15915252658.

It is an arithmetic number, because the mean of its divisors is an integer number (1114067676400).

Almost surely, 2^{4424440200421} is an apocalyptic number.

It is an amenable number.

4424440200421 is a deficient number, since it is larger than the sum of its proper divisors (31830505179).

4424440200421 is a wasteful number, since it uses less digits than its factorization.

4424440200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31830505178.

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 4424440200421 its reverse (1240020444244), we get a palindrome (5664460644665).

The spelling of 4424440200421 in words is "four trillion, four hundred twenty-four billion, four hundred forty million, two hundred thousand, four hundred twenty-one".