423243444420240 has 80 divisors (see below), whose sum is σ = 1381110187070400. Its totient is φ = 106924659641856.

The previous prime is 423243444420193. The next prime is 423243444420289. The reversal of 423243444420240 is 42024444342324.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 423243444420192 and 423243444420201.

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 15 ways as a sum of consecutive naturals, for example, 46408267855 + ... + 46408276974.

It is an arithmetic number, because the mean of its divisors is an integer number (17263877338380).

Almost surely, 2^{423243444420240} is an apocalyptic number.

423243444420240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423243444420240 is an abundant number, since it is smaller than the sum of its proper divisors (957866742650160).

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

423243444420240 is a wasteful number, since it uses less digits than its factorization.

423243444420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92816544864 (or 92816544858 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 42.

Adding to 423243444420240 its reverse (42024444342324), we get a palindrome (465267888762564).

The spelling of 423243444420240 in words is "four hundred twenty-three trillion, two hundred forty-three billion, four hundred forty-four million, four hundred twenty thousand, two hundred forty".