4043440012432 has 20 divisors (see below), whose sum is σ = 8294998261356. Its totient is φ = 1902795299840.

The previous prime is 4043440012399. The next prime is 4043440012481. The reversal of 4043440012432 is 2342100443404.

It can be written as a sum of positive squares in 2 ways, for example, as 3618836600976 + 424603411456 = 1902324^2 + 651616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4043440012394 and 4043440012403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7432793869 + ... + 7432794412.

Almost surely, 2^{4043440012432} is an apocalyptic number.

It is an amenable number.

4043440012432 is an abundant number, since it is smaller than the sum of its proper divisors (4251558248924).

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

4043440012432 is a wasteful number, since it uses less digits than its factorization.

4043440012432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14865588306 (or 14865588300 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4043440012432 its reverse (2342100443404), we get a palindrome (6385540455836).

The spelling of 4043440012432 in words is "four trillion, forty-three billion, four hundred forty million, twelve thousand, four hundred thirty-two".