4065385 has 8 divisors (see below), whose sum is σ = 4889736. Its totient is φ = 3244800.

The previous prime is 4065379. The next prime is 4065403. The reversal of 4065385 is 5835604.

It can be written as a sum of positive squares in 4 ways, for example, as 363609 + 3701776 = 603^2 + 1924^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4065385 - 2³ = 4065377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2785 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (611217).

Almost surely, 2^4065385 is an apocalyptic number.

It is an amenable number.

4065385 is a deficient number, since it is larger than the sum of its proper divisors (824351).

4065385 is a wasteful number, since it uses less digits than its factorization.

4065385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4065385 is about 2016.2799904775. The cubic root of 4065385 is about 159.6003698670.

The spelling of 4065385 in words is "four million, sixty-five thousand, three hundred eighty-five".