4042400244443 has 12 divisors (see below), whose sum is σ = 4450500982200. Its totient is φ = 3668953152480.

The previous prime is 4042400244439. The next prime is 4042400244517. The reversal of 4042400244443 is 3444420042404.

It is a happy number.

It is not a de Polignac number, because 4042400244443 - 2² = 4042400244439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4042400244943) 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 11 ways as a sum of consecutive naturals, for example, 26998493 + ... + 27147806.

It is an arithmetic number, because the mean of its divisors is an integer number (370875081850).

Almost surely, 2^{4042400244443} is an apocalyptic number.

4042400244443 is a deficient number, since it is larger than the sum of its proper divisors (408100737757).

4042400244443 is a wasteful number, since it uses less digits than its factorization.

4042400244443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54146938 (or 54146927 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 35.

Adding to 4042400244443 its reverse (3444420042404), we get a palindrome (7486820286847).

The spelling of 4042400244443 in words is "four trillion, forty-two billion, four hundred million, two hundred forty-four thousand, four hundred forty-three".