423443234140 has 24 divisors (see below), whose sum is σ = 894198569040. Its totient is φ = 168431050368.

The previous prime is 423443234101. The next prime is 423443234167. The reversal of 423443234140 is 41432344324.

It is a super-3 number, since 3×423443234140³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423443234096 and 423443234105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59136537 + ... + 59143696.

It is an arithmetic number, because the mean of its divisors is an integer number (37258273710).

Almost surely, 2^423443234140 is an apocalyptic number.

It is an amenable number.

423443234140 is an abundant number, since it is smaller than the sum of its proper divisors (470755334900).

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

423443234140 is a wasteful number, since it uses less digits than its factorization.

423443234140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118280421 (or 118280419 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 423443234140 its reverse (41432344324), we get a palindrome (464875578464).

The spelling of 423443234140 in words is "four hundred twenty-three billion, four hundred forty-three million, two hundred thirty-four thousand, one hundred forty".