4440440440 has 32 divisors (see below), whose sum is σ = 9992900160. Its totient is φ = 1775836800.

The previous prime is 4440440393. The next prime is 4440440483. The reversal of 4440440440 is 440440444.

It is a super-2 number, since 2×4440440440² = 39435022602374787200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4440440399 and 4440440408.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369730 + ... + 381550.

It is an arithmetic number, because the mean of its divisors is an integer number (312278130).

Almost surely, 2^4440440440 is an apocalyptic number.

4440440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4440440440 is an abundant number, since it is smaller than the sum of its proper divisors (5552459720).

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

4440440440 is a wasteful number, since it uses less digits than its factorization.

4440440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21223 (or 21219 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 4440440440 is about 66636.6298667632. The cubic root of 4440440440 is about 1643.6474983383.

Adding to 4440440440 its reverse (440440444), we get a palindrome (4880880884).

The spelling of 4440440440 in words is "four billion, four hundred forty million, four hundred forty thousand, four hundred forty".