400242042240001 has 24 divisors (see below), whose sum is σ = 445142622361920. Its totient is φ = 359443933183296.

The previous prime is 400242042239981. The next prime is 400242042240011. The reversal of 400242042240001 is 100042240242004.

It is not a de Polignac number, because 400242042240001 - 2²³ = 400242033851393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400242042240011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87942436 + ... + 92381578.

It is an arithmetic number, because the mean of its divisors is an integer number (18547609265080).

Almost surely, 2^{400242042240001} is an apocalyptic number.

It is an amenable number.

400242042240001 is a deficient number, since it is larger than the sum of its proper divisors (44900580121919).

400242042240001 is a wasteful number, since it uses less digits than its factorization.

400242042240001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453625 (or 4453612 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 400242042240001 its reverse (100042240242004), we get a palindrome (500284282482005).

The spelling of 400242042240001 in words is "four hundred trillion, two hundred forty-two billion, forty-two million, two hundred forty thousand, one".