4431232040040 has 96 divisors (see below), whose sum is σ = 15509312156520. Its totient is φ = 1090764808704.

The previous prime is 4431232040021. The next prime is 4431232040051. The reversal of 4431232040040 is 400402321344.

It is a happy number.

4431232040040 is a `hidden beast` number, since 4 + 431 + 23 + 204 + 0 + 0 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3388345836516 + 1042886203524 = 1840746^2 + 1021218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4431232039986 and 4431232040013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 473417547 + ... + 473426906.

Almost surely, 2^{4431232040040} is an apocalyptic number.

4431232040040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4431232040040 is an abundant number, since it is smaller than the sum of its proper divisors (11078080116480).

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

4431232040040 is a wasteful number, since it uses less digits than its factorization.

4431232040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946844483 (or 946844476 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 4431232040040 its reverse (400402321344), we get a palindrome (4831634361384).

The spelling of 4431232040040 in words is "four trillion, four hundred thirty-one billion, two hundred thirty-two million, forty thousand, forty".