4445128 has 16 divisors (see below), whose sum is σ = 8357580. Its totient is φ = 2216448.

The previous prime is 4445113. The next prime is 4445153. The reversal of 4445128 is 8215444.

It can be written as a sum of positive squares in 2 ways, for example, as 4235364 + 209764 = 2058^2 + 458^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4445096 and 4445105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4276 + ... + 5212.

Almost surely, 2^4445128 is an apocalyptic number.

It is an amenable number.

4445128 is a deficient number, since it is larger than the sum of its proper divisors (3912452).

4445128 is a wasteful number, since it uses less digits than its factorization.

4445128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536 (or 1532 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 4445128 is about 2108.3472199806. The cubic root of 4445128 is about 164.4225668214.

The spelling of 4445128 in words is "four million, four hundred forty-five thousand, one hundred twenty-eight".