42420224242 has 16 divisors (see below), whose sum is σ = 69705360000. Its totient is φ = 19201240240.

The previous prime is 42420224233. The next prime is 42420224243. The reversal of 42420224242 is 24242202424.

It is a self number, because there is not a number n which added to its sum of digits gives 42420224242.

It is not an unprimeable number, because it can be changed into a prime (42420224243) 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, 4028617 + ... + 4039132.

It is an arithmetic number, because the mean of its divisors is an integer number (4356585000).

Almost surely, 2^42420224242 is an apocalyptic number.

42420224242 is a deficient number, since it is larger than the sum of its proper divisors (27285135758).

42420224242 is a wasteful number, since it uses less digits than its factorization.

42420224242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068001.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 42420224242 its reverse (24242202424), we get a palindrome (66662426666).

It can be divided in two parts, 42420 and 224242, that added together give a palindrome (266662).

The spelling of 42420224242 in words is "forty-two billion, four hundred twenty million, two hundred twenty-four thousand, two hundred forty-two".