4243440120040 has 64 divisors (see below), whose sum is σ = 10420157079360. Its totient is φ = 1542411294720.

The previous prime is 4243440119999. The next prime is 4243440120043. The reversal of 4243440120040 is 400210443424.

It is a junction number, because it is equal to n+sod(n) for n = 4243440119990 and 4243440120008.

It is not an unprimeable number, because it can be changed into a prime (4243440120043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021897 + ... + 3087256.

It is an arithmetic number, because the mean of its divisors is an integer number (162814954365).

Almost surely, 2^{4243440120040} is an apocalyptic number.

4243440120040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243440120040 is an abundant number, since it is smaller than the sum of its proper divisors (6176716959320).

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

4243440120040 is a wasteful number, since it uses less digits than its factorization.

4243440120040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111522 (or 4111518 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 4243440120040 its reverse (400210443424), we get a palindrome (4643650563464).

The spelling of 4243440120040 in words is "four trillion, two hundred forty-three billion, four hundred forty million, one hundred twenty thousand, forty".