43271230440 has 64 divisors (see below), whose sum is σ = 130673439360. Its totient is φ = 11462572800.

The previous prime is 43271230421. The next prime is 43271230441. The reversal of 43271230440 is 4403217234.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 43271230398 and 43271230407.

It is not an unprimeable number, because it can be changed into a prime (43271230441) 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, 1175899 + ... + 1212138.

It is an arithmetic number, because the mean of its divisors is an integer number (2041772490).

Almost surely, 2^43271230440 is an apocalyptic number.

43271230440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43271230440 is an abundant number, since it is smaller than the sum of its proper divisors (87402208920).

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

43271230440 is a wasteful number, since it uses less digits than its factorization.

43271230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388202 (or 2388198 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

Adding to 43271230440 its reverse (4403217234), we get a palindrome (47674447674).

The spelling of 43271230440 in words is "forty-three billion, two hundred seventy-one million, two hundred thirty thousand, four hundred forty".