423542634340 has 48 divisors (see below), whose sum is σ = 1016926848000. Its totient is φ = 145153971072.

The previous prime is 423542634331. The next prime is 423542634379. The reversal of 423542634340 is 43436245324.

It is a junction number, because it is equal to n+sod(n) for n = 423542634293 and 423542634302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294675 + ... + 966394.

It is an arithmetic number, because the mean of its divisors is an integer number (21185976000).

Almost surely, 2^423542634340 is an apocalyptic number.

It is an amenable number.

423542634340 is an abundant number, since it is smaller than the sum of its proper divisors (593384213660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423542634340 is a wasteful number, since it uses less digits than its factorization.

423542634340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263484 (or 1263482 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 423542634340 its reverse (43436245324), we get a palindrome (466978879664).

The spelling of 423542634340 in words is "four hundred twenty-three billion, five hundred forty-two million, six hundred thirty-four thousand, three hundred forty".