4042400240042 has 16 divisors (see below), whose sum is σ = 6147192182472. Its totient is φ = 1993340943360.

The previous prime is 4042400240041. The next prime is 4042400240077. The reversal of 4042400240042 is 2400420042404.

4042400240042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4033224707521 + 9175532521 = 2008289^2 + 95789^2 .

It is a super-3 number, since 3×4042400240042³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4042400239993 and 4042400240020.

It is not an unprimeable number, because it can be changed into a prime (4042400240041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520268 + ... + 2890584.

Almost surely, 2^{4042400240042} is an apocalyptic number.

4042400240042 is a deficient number, since it is larger than the sum of its proper divisors (2104791942430).

4042400240042 is a wasteful number, since it uses less digits than its factorization.

4042400240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382073.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 4042400240042 its reverse (2400420042404), we get a palindrome (6442820282446).

The spelling of 4042400240042 in words is "four trillion, forty-two billion, four hundred million, two hundred forty thousand, forty-two".