4380385 has 4 divisors (see below), whose sum is σ = 5256468. Its totient is φ = 3504304.

The previous prime is 4380361. The next prime is 4380391. The reversal of 4380385 is 5830834.

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 3265249 + 1115136 = 1807^2 + 1056^2 .

It is a cyclic number.

It is not a de Polignac number, because 4380385 - 2⁹ = 4379873 is a prime.

It is a Duffinian number.

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, 438034 + ... + 438043.

It is an arithmetic number, because the mean of its divisors is an integer number (1314117).

Almost surely, 2^4380385 is an apocalyptic number.

It is an amenable number.

4380385 is a deficient number, since it is larger than the sum of its proper divisors (876083).

4380385 is an equidigital number, since it uses as much as digits as its factorization.

4380385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876082.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 4380385 is about 2092.9369316824. The cubic root of 4380385 is about 163.6203915855.

The spelling of 4380385 in words is "four million, three hundred eighty thousand, three hundred eighty-five".