4400131444 has 24 divisors (see below), whose sum is σ = 8098610688. Its totient is φ = 2088921120.

The previous prime is 4400131423. The next prime is 4400131447. The reversal of 4400131444 is 4441310044.

It is a happy number.

It is a super-2 number, since 2×4400131444² = 38722313448955050272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400131447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328192 + ... + 341335.

It is an arithmetic number, because the mean of its divisors is an integer number (337442112).

Almost surely, 2^4400131444 is an apocalyptic number.

It is an amenable number.

4400131444 is a deficient number, since it is larger than the sum of its proper divisors (3698479244).

4400131444 is a wasteful number, since it uses less digits than its factorization.

4400131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669615 (or 669613 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4400131444 is about 66333.4865961379. The cubic root of 4400131444 is about 1638.6588584426.

Adding to 4400131444 its reverse (4441310044), we get a palindrome (8841441488).

The spelling of 4400131444 in words is "four billion, four hundred million, one hundred thirty-one thousand, four hundred forty-four".