4443385 has 16 divisors (see below), whose sum is σ = 5575680. Its totient is φ = 3395520.

The previous prime is 4443379. The next prime is 4443391. The reversal of 4443385 is 5833444.

It is an interprime number because it is at equal distance from previous prime (4443379) and next prime (4443391).

It is not a de Polignac number, because 4443385 - 2⁵ = 4443353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an Ulam number.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 16764 + ... + 17026.

It is an arithmetic number, because the mean of its divisors is an integer number (348480).

Almost surely, 2^4443385 is an apocalyptic number.

It is an amenable number.

4443385 is a deficient number, since it is larger than the sum of its proper divisors (1132295).

4443385 is a wasteful number, since it uses less digits than its factorization.

4443385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its digits is 23040, while the sum is 31.

The square root of 4443385 is about 2107.9338224906. The cubic root of 4443385 is about 164.4010731771.

The spelling of 4443385 in words is "four million, four hundred forty-three thousand, three hundred eighty-five".