4405385 has 4 divisors (see below), whose sum is σ = 5286468. Its totient is φ = 3524304.

The previous prime is 4405381. The next prime is 4405403. The reversal of 4405385 is 5835044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 512656 + 3892729 = 716^2 + 1973^2 .

It is a cyclic number.

It is not a de Polignac number, because 4405385 - 2² = 4405381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4405381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440534 + ... + 440543.

It is an arithmetic number, because the mean of its divisors is an integer number (1321617).

Almost surely, 2^4405385 is an apocalyptic number.

It is an amenable number.

4405385 is a deficient number, since it is larger than the sum of its proper divisors (881083).

4405385 is an equidigital number, since it uses as much as digits as its factorization.

4405385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881082.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4405385 is about 2098.9009028537. The cubic root of 4405385 is about 163.9310760345.

The spelling of 4405385 in words is "four million, four hundred five thousand, three hundred eighty-five".