423243065940 has 48 divisors (see below), whose sum is σ = 1196586238848. Its totient is φ = 111769041024.

The previous prime is 423243065939. The next prime is 423243065981. The reversal of 423243065940 is 49560342324.

It is a junction number, because it is equal to n+sod(n) for n = 423243065892 and 423243065901.

It is a congruent number.

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, 34236787 + ... + 34249146.

It is an arithmetic number, because the mean of its divisors is an integer number (24928879976).

Almost surely, 2^423243065940 is an apocalyptic number.

It is an amenable number.

423243065940 is an abundant number, since it is smaller than the sum of its proper divisors (773343172908).

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

423243065940 is a wasteful number, since it uses less digits than its factorization.

423243065940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68486048 (or 68486046 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 423243065940 in words is "four hundred twenty-three billion, two hundred forty-three million, sixty-five thousand, nine hundred forty".