4244240431421 has 16 divisors (see below), whose sum is σ = 4368068559360. Its totient is φ = 4121563506480.

The previous prime is 4244240431373. The next prime is 4244240431463. The reversal of 4244240431421 is 1241340424424.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4244240431421 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 (4244240431471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40919336 + ... + 41022926.

It is an arithmetic number, because the mean of its divisors is an integer number (273004284960).

Almost surely, 2^{4244240431421} is an apocalyptic number.

It is an amenable number.

4244240431421 is a deficient number, since it is larger than the sum of its proper divisors (123828127939).

4244240431421 is a wasteful number, since it uses less digits than its factorization.

4244240431421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109136.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 4244240431421 its reverse (1241340424424), we get a palindrome (5485580855845).

The spelling of 4244240431421 in words is "four trillion, two hundred forty-four billion, two hundred forty million, four hundred thirty-one thousand, four hundred twenty-one".