423404440342 has 24 divisors (see below), whose sum is σ = 687779294400. Its totient is φ = 195400314720.

The previous prime is 423404440331. The next prime is 423404440387. The reversal of 423404440342 is 243044404324.

It is a junction number, because it is equal to n+sod(n) for n = 423404440298 and 423404440307.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 4325659 + ... + 4422457.

It is an arithmetic number, because the mean of its divisors is an integer number (28657470600).

Almost surely, 2^423404440342 is an apocalyptic number.

423404440342 is a deficient number, since it is larger than the sum of its proper divisors (264374854058).

423404440342 is a wasteful number, since it uses less digits than its factorization.

423404440342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109768 (or 109755 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 34.

Adding to 423404440342 its reverse (243044404324), we get a palindrome (666448844666).

The spelling of 423404440342 in words is "four hundred twenty-three billion, four hundred four million, four hundred forty thousand, three hundred forty-two".