4445385 has 16 divisors (see below), whose sum is σ = 8128896. Its totient is φ = 2032128.

The previous prime is 4445333. The next prime is 4445387. The reversal of 4445385 is 5835444.

It is not a de Polignac number, because 4445385 - 2⁶ = 4445321 is a prime.

It is a super-2 number, since 2×4445385² = 39522895596450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4445387) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21064 + ... + 21273.

It is an arithmetic number, because the mean of its divisors is an integer number (508056).

Almost surely, 2^4445385 is an apocalyptic number.

It is an amenable number.

4445385 is a deficient number, since it is larger than the sum of its proper divisors (3683511).

4445385 is a wasteful number, since it uses less digits than its factorization.

4445385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42352.

The product of its digits is 38400, while the sum is 33.

The square root of 4445385 is about 2108.4081673149. The cubic root of 4445385 is about 164.4257355180.

The spelling of 4445385 in words is "four million, four hundred forty-five thousand, three hundred eighty-five".