4400043140 has 12 divisors (see below), whose sum is σ = 9240090636. Its totient is φ = 1760017248.

The previous prime is 4400043127. The next prime is 4400043149. The reversal of 4400043140 is 413400044.

It can be written as a sum of positive squares in 2 ways, for example, as 2736545344 + 1663497796 = 52312^2 + 40786^2 .

It is a super-3 number, since 3×4400043140³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 220002157 = 4400043140 / (4 + 4 + 0 + 0 + 0 + 4 + 3 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (4400043149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110001059 + ... + 110001098.

It is an arithmetic number, because the mean of its divisors is an integer number (770007553).

Almost surely, 2^4400043140 is an apocalyptic number.

It is an amenable number.

4400043140 is an abundant number, since it is smaller than the sum of its proper divisors (4840047496).

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

4400043140 is a wasteful number, since it uses less digits than its factorization.

4400043140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220002166 (or 220002164 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4400043140 is about 66332.8209862961. The cubic root of 4400043140 is about 1638.6478965655.

Adding to 4400043140 its reverse (413400044), we get a palindrome (4813443184).

The spelling of 4400043140 in words is "four billion, four hundred million, forty-three thousand, one hundred forty".