4440440439 has 16 divisors (see below), whose sum is σ = 6581021440. Its totient is φ = 2959127640.

The previous prime is 4440440393. The next prime is 4440440483. The reversal of 4440440439 is 9340440444.

It is not a de Polignac number, because 4440440439 - 2²³ = 4432051831 is a prime.

It is a super-2 number, since 2×4440440439² = 39435022584613025442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440440339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40404 + ... + 102534.

It is an arithmetic number, because the mean of its divisors is an integer number (411313840).

Almost surely, 2^4440440439 is an apocalyptic number.

4440440439 is a deficient number, since it is larger than the sum of its proper divisors (2140581001).

4440440439 is a wasteful number, since it uses less digits than its factorization.

4440440439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64787 (or 64781 counting only the distinct ones).

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

The square root of 4440440439 is about 66636.6298592598. The cubic root of 4440440439 is about 1643.6474982149.

The spelling of 4440440439 in words is "four billion, four hundred forty million, four hundred forty thousand, four hundred thirty-nine".