423243344434 has 8 divisors (see below), whose sum is σ = 634896616860. Its totient is φ = 211611138816.

The previous prime is 423243344401. The next prime is 423243344437. The reversal of 423243344434 is 434443342324.

It can be written as a sum of positive squares in 2 ways, for example, as 391128912409 + 32114432025 = 625403^2 + 179205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (423243344437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5216379 + ... + 5296894.

Almost surely, 2^423243344434 is an apocalyptic number.

423243344434 is a deficient number, since it is larger than the sum of its proper divisors (211653272426).

423243344434 is a wasteful number, since it uses less digits than its factorization.

423243344434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533404.

The product of its digits is 1327104, while the sum is 40.

Adding to 423243344434 its reverse (434443342324), we get a palindrome (857686686758).

The spelling of 423243344434 in words is "four hundred twenty-three billion, two hundred forty-three million, three hundred forty-four thousand, four hundred thirty-four".