4400444439 has 12 divisors (see below), whose sum is σ = 6356780976. Its totient is φ = 2933360352.

The previous prime is 4400444423. The next prime is 4400444459. The reversal of 4400444439 is 9344440044.

It is not a de Polignac number, because 4400444439 - 2⁴ = 4400444423 is a prime.

It is a super-2 number, since 2×4400444439² = 38727822521452049442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400444459) 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, 154422 + ... + 180684.

It is an arithmetic number, because the mean of its divisors is an integer number (529731748).

Almost surely, 2^4400444439 is an apocalyptic number.

4400444439 is a deficient number, since it is larger than the sum of its proper divisors (1956336537).

4400444439 is a wasteful number, since it uses less digits than its factorization.

4400444439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44886 (or 44883 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 4400444439 is about 66335.8458075270. The cubic root of 4400444439 is about 1638.6977118174.

The spelling of 4400444439 in words is "four billion, four hundred million, four hundred forty-four thousand, four hundred thirty-nine".