4431140433 has 6 divisors (see below), whose sum is σ = 6400536194. Its totient is φ = 2954093616.

The previous prime is 4431140431. The next prime is 4431140447. The reversal of 4431140433 is 3340411344.

It can be written as a sum of positive squares in only one way, i.e., 4427172369 + 3968064 = 66537^2 + 1992^2 .

It is not a de Polignac number, because 4431140433 - 2¹ = 4431140431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4431140397 and 4431140406.

It is not an unprimeable number, because it can be changed into a prime (4431140431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246174460 + ... + 246174477.

Almost surely, 2^4431140433 is an apocalyptic number.

It is an amenable number.

4431140433 is a deficient number, since it is larger than the sum of its proper divisors (1969395761).

4431140433 is a wasteful number, since it uses less digits than its factorization.

4431140433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492348943 (or 492348940 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 4431140433 is about 66566.8117983729. The cubic root of 4431140433 is about 1642.4992175583.

Adding to 4431140433 its reverse (3340411344), we get a palindrome (7771551777).

The spelling of 4431140433 in words is "four billion, four hundred thirty-one million, one hundred forty thousand, four hundred thirty-three".