43124312440 has 64 divisors (see below), whose sum is σ = 105879972960. Its totient is φ = 15677214720.

The previous prime is 43124312419. The next prime is 43124312489. The reversal of 43124312440 is 4421342134.

It is a junction number, because it is equal to n+sod(n) for n = 43124312399 and 43124312408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868652 + ... + 1891588.

Almost surely, 2^43124312440 is an apocalyptic number.

43124312440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43124312440 is an abundant number, since it is smaller than the sum of its proper divisors (62755660520).

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

43124312440 is a wasteful number, since it uses less digits than its factorization.

43124312440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27232 (or 27228 counting only the distinct ones).

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

Adding to 43124312440 its reverse (4421342134), we get a palindrome (47545654574).

The spelling of 43124312440 in words is "forty-three billion, one hundred twenty-four million, three hundred twelve thousand, four hundred forty".