4440145424 has 160 divisors (see below), whose sum is σ = 10373336064. Its totient is φ = 1814653440.

The previous prime is 4440145421. The next prime is 4440145429. The reversal of 4440145424 is 4245410444.

It is not an unprimeable number, because it can be changed into a prime (4440145421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19559999 + ... + 19560225.

Almost surely, 2^4440145424 is an apocalyptic number.

4440145424 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4440145424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5186668032).

4440145424 is an abundant number, since it is smaller than the sum of its proper divisors (5933190640).

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

4440145424 is a wasteful number, since it uses less digits than its factorization.

4440145424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 32.

The square root of 4440145424 is about 66634.4162126449. The cubic root of 4440145424 is about 1643.6110970656.

Adding to 4440145424 its reverse (4245410444), we get a palindrome (8685555868).

The spelling of 4440145424 in words is "four billion, four hundred forty million, one hundred forty-five thousand, four hundred twenty-four".