42424242423 has 4 divisors (see below), whose sum is σ = 56565656568. Its totient is φ = 28282828280.

The previous prime is 42424242383. The next prime is 42424242437. The reversal of 42424242423 is 32424242424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42424242423 - 2²⁹ = 41887371511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42424242023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7070707068 + ... + 7070707073.

It is an arithmetic number, because the mean of its divisors is an integer number (14141414142).

Almost surely, 2^42424242423 is an apocalyptic number.

42424242423 is a deficient number, since it is larger than the sum of its proper divisors (14141414145).

42424242423 is a wasteful number, since it uses less digits than its factorization.

42424242423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14141414144.

The product of its digits is 98304, while the sum is 33.

Adding to 42424242423 its reverse (32424242424), we get a palindrome (74848484847).

Subtracting from 42424242423 its reverse (32424242424), we obtain a palindrome (9999999999).

The spelling of 42424242423 in words is "forty-two billion, four hundred twenty-four million, two hundred forty-two thousand, four hundred twenty-three".