4431111442 has 4 divisors (see below), whose sum is σ = 6646667166. Its totient is φ = 2215555720.

The previous prime is 4431111413. The next prime is 4431111457. The reversal of 4431111442 is 2441111344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3460851241 + 970260201 = 58829^2 + 31149^2 .

It is a super-2 number, since 2×4431111442² = 39269497222846638728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107777859 + ... + 1107777862.

Almost surely, 2^4431111442 is an apocalyptic number.

4431111442 is a deficient number, since it is larger than the sum of its proper divisors (2215555724).

4431111442 is a wasteful number, since it uses less digits than its factorization.

4431111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215555723.

The product of its digits is 1536, while the sum is 25.

The square root of 4431111442 is about 66566.5940393528. The cubic root of 4431111442 is about 1642.4956355009.

Adding to 4431111442 its reverse (2441111344), we get a palindrome (6872222786).

The spelling of 4431111442 in words is "four billion, four hundred thirty-one million, one hundred eleven thousand, four hundred forty-two".