4243232420240 has 80 divisors (see below), whose sum is σ = 10821841482816. Its totient is φ = 1534468723200.

The previous prime is 4243232420221. The next prime is 4243232420249. The reversal of 4243232420240 is 420242323424.

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 = 4243232420197 and 4243232420206.

It is not an unprimeable number, because it can be changed into a prime (4243232420249) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13160762 + ... + 13479321.

Almost surely, 2^{4243232420240} is an apocalyptic number.

4243232420240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243232420240 is an abundant number, since it is smaller than the sum of its proper divisors (6578609062576).

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

4243232420240 is a wasteful number, since it uses less digits than its factorization.

4243232420240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26640288 (or 26640282 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 4243232420240 its reverse (420242323424), we get a palindrome (4663474743664).

The spelling of 4243232420240 in words is "four trillion, two hundred forty-three billion, two hundred thirty-two million, four hundred twenty thousand, two hundred forty".