423421342224442 has 16 divisors (see below), whose sum is σ = 655628075654400. Its totient is φ = 204878815607520.

The previous prime is 423421342224431. The next prime is 423421342224443. The reversal of 423421342224442 is 244422243124324.

It is a happy number.

It is a super-2 number, since 2×423421342224442² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423421342224443) 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, 36146392 + ... + 46404787.

It is an arithmetic number, because the mean of its divisors is an integer number (40976754728400).

Almost surely, 2^{423421342224442} is an apocalyptic number.

423421342224442 is a deficient number, since it is larger than the sum of its proper divisors (232206733429958).

423421342224442 is a wasteful number, since it uses less digits than its factorization.

423421342224442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82633941.

The product of its digits is 2359296, while the sum is 43.

Adding to 423421342224442 its reverse (244422243124324), we get a palindrome (667843585348766).

The spelling of 423421342224442 in words is "four hundred twenty-three trillion, four hundred twenty-one billion, three hundred forty-two million, two hundred twenty-four thousand, four hundred forty-two".