4042440042 has 32 divisors (see below), whose sum is σ = 8221725504. Its totient is φ = 1324752000.

The previous prime is 4042440011. The next prime is 4042440067. The reversal of 4042440042 is 2400442404.

It is a junction number, because it is equal to n+sod(n) for n = 4042439994 and 4042440021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199792 + ... + 219092.

It is an arithmetic number, because the mean of its divisors is an integer number (256928922).

Almost surely, 2^4042440042 is an apocalyptic number.

4042440042 is an abundant number, since it is smaller than the sum of its proper divisors (4179285462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4042440042 is a wasteful number, since it uses less digits than its factorization.

4042440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19894.

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 4042440042 is about 63580.1859229745. The cubic root of 4042440042 is about 1592.9954268564.

Adding to 4042440042 its reverse (2400442404), we get a palindrome (6442882446).

The spelling of 4042440042 in words is "four billion, forty-two million, four hundred forty thousand, forty-two".