43440313240 has 32 divisors (see below), whose sum is σ = 100382348880. Its totient is φ = 16906499712.

The previous prime is 43440313229. The next prime is 43440313243. The reversal of 43440313240 is 4231304434.

43440313240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43440313199 and 43440313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43440313243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14674302 + ... + 14677261.

Almost surely, 2^43440313240 is an apocalyptic number.

43440313240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43440313240 is an abundant number, since it is smaller than the sum of its proper divisors (56942035640).

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

43440313240 is a wasteful number, since it uses less digits than its factorization.

43440313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29351611 (or 29351607 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 43440313240 its reverse (4231304434), we get a palindrome (47671617674).

The spelling of 43440313240 in words is "forty-three billion, four hundred forty million, three hundred thirteen thousand, two hundred forty".