4243210031440 has 40 divisors (see below), whose sum is σ = 10384698238560. Its totient is φ = 1607953274496.

The previous prime is 4243210031393. The next prime is 4243210031461. The reversal of 4243210031440 is 441300123424.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 4243210031399 and 4243210031408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395791254 + ... + 1395794293.

It is an arithmetic number, because the mean of its divisors is an integer number (259617455964).

Almost surely, 2^{4243210031440} is an apocalyptic number.

4243210031440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243210031440 is an abundant number, since it is smaller than the sum of its proper divisors (6141488207120).

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

4243210031440 is a wasteful number, since it uses less digits than its factorization.

4243210031440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791585579 (or 2791585573 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 4243210031440 its reverse (441300123424), we get a palindrome (4684510154864).

The spelling of 4243210031440 in words is "four trillion, two hundred forty-three billion, two hundred ten million, thirty-one thousand, four hundred forty".