4440142431 has 12 divisors (see below), whose sum is σ = 6620427840. Its totient is φ = 2864607840.

The previous prime is 4440142351. The next prime is 4440142439. The reversal of 4440142431 is 1342410444.

It is not a de Polignac number, because 4440142431 - 2⁹ = 4440141919 is a prime.

It is a super-2 number, since 2×4440142431² = 39429729615133179522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4440142395 and 4440142404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440142439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7956966 + ... + 7957523.

It is an arithmetic number, because the mean of its divisors is an integer number (551702320).

Almost surely, 2^4440142431 is an apocalyptic number.

4440142431 is a deficient number, since it is larger than the sum of its proper divisors (2180285409).

4440142431 is a wasteful number, since it uses less digits than its factorization.

4440142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15914526 (or 15914523 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 4440142431 is about 66634.3937542768. The cubic root of 4440142431 is about 1643.6107277587.

Adding to 4440142431 its reverse (1342410444), we get a palindrome (5782552875).

The spelling of 4440142431 in words is "four billion, four hundred forty million, one hundred forty-two thousand, four hundred thirty-one".