4431213232 has 10 divisors (see below), whose sum is σ = 8585475668. Its totient is φ = 2215606608.

The previous prime is 4431213169. The next prime is 4431213239. The reversal of 4431213232 is 2323121344.

It is a junction number, because it is equal to n+sod(n) for n = 4431213197 and 4431213206.

It is not an unprimeable number, because it can be changed into a prime (4431213239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138475398 + ... + 138475429.

Almost surely, 2^4431213232 is an apocalyptic number.

It is an amenable number.

4431213232 is a deficient number, since it is larger than the sum of its proper divisors (4154262436).

4431213232 is a wasteful number, since it uses less digits than its factorization.

4431213232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276950835 (or 276950829 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 4431213232 is about 66567.3586076539. The cubic root of 4431213232 is about 1642.5082123568.

Adding to 4431213232 its reverse (2323121344), we get a palindrome (6754334576).

The spelling of 4431213232 in words is "four billion, four hundred thirty-one million, two hundred thirteen thousand, two hundred thirty-two".