4243434031440 has 60 divisors (see below), whose sum is σ = 14250865958004. Its totient is φ = 1131582408192.

The previous prime is 4243434031439. The next prime is 4243434031453. The reversal of 4243434031440 is 441304343424.

4243434031440 is a `hidden beast` number, since 4 + 243 + 4 + 3 + 403 + 1 + 4 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1839582241344 + 2403851790096 = 1356312^2 + 1550436^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4243434031395 and 4243434031404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2946828469 + ... + 2946829908.

Almost surely, 2^{4243434031440} is an apocalyptic number.

4243434031440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4243434031440 is an abundant number, since it is smaller than the sum of its proper divisors (10007431926564).

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

4243434031440 is a wasteful number, since it uses less digits than its factorization.

4243434031440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893658396 (or 5893658387 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 4243434031440 its reverse (441304343424), we get a palindrome (4684738374864).

The spelling of 4243434031440 in words is "four trillion, two hundred forty-three billion, four hundred thirty-four million, thirty-one thousand, four hundred forty".