1385285 has 16 divisors (see below), whose sum is σ = 1840320. Its totient is φ = 992640.

The previous prime is 1385273. The next prime is 1385287. The reversal of 1385285 is 5825831.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1385285 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4754 + ... + 5036.

It is an arithmetic number, because the mean of its divisors is an integer number (115020).

2^1385285 is an apocalyptic number.

It is an amenable number.

1385285 is a deficient number, since it is larger than the sum of its proper divisors (455035).

1385285 is a wasteful number, since it uses less digits than its factorization.

1385285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its digits is 9600, while the sum is 32.

The square root of 1385285 is about 1176.9813082628. The cubic root of 1385285 is about 111.4755722795.

The spelling of 1385285 in words is "one million, three hundred eighty-five thousand, two hundred eighty-five".