4144928 has 12 divisors (see below), whose sum is σ = 8160390. Its totient is φ = 2072448.

The previous prime is 4144919. The next prime is 4144961. The reversal of 4144928 is 8294414.

It can be written as a sum of positive squares in only one way, i.e., 2917264 + 1227664 = 1708^2 + 1108^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 129529 = 4144928 / (4 + 1 + 4 + 4 + 9 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 4144894 and 4144903.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64733 + ... + 64796.

Almost surely, 2^4144928 is an apocalyptic number.

It is an amenable number.

4144928 is a deficient number, since it is larger than the sum of its proper divisors (4015462).

4144928 is a wasteful number, since it uses less digits than its factorization.

4144928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129539 (or 129531 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 4144928 is about 2035.9096247132. The cubic root of 4144928 is about 160.6345633150.

The spelling of 4144928 in words is "four million, one hundred forty-four thousand, nine hundred twenty-eight".