4243442443401 has 32 divisors (see below), whose sum is σ = 6505164000000. Its totient is φ = 2410218860544.

The previous prime is 4243442443399. The next prime is 4243442443403. The reversal of 4243442443401 is 1043442443424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4243442443399) and next prime (4243442443403).

It is not a de Polignac number, because 4243442443401 - 2¹ = 4243442443399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4243442443401.

It is not an unprimeable number, because it can be changed into a prime (4243442443403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14947225 + ... + 15228473.

It is an arithmetic number, because the mean of its divisors is an integer number (203286375000).

Almost surely, 2^{4243442443401} is an apocalyptic number.

It is an amenable number.

4243442443401 is a deficient number, since it is larger than the sum of its proper divisors (2261721556599).

4243442443401 is a wasteful number, since it uses less digits than its factorization.

4243442443401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285585.

The product of its (nonzero) digits is 589824, while the sum is 39.

Adding to 4243442443401 its reverse (1043442443424), we get a palindrome (5286884886825).

The spelling of 4243442443401 in words is "four trillion, two hundred forty-three billion, four hundred forty-two million, four hundred forty-three thousand, four hundred one".