2018385 has 16 divisors (see below), whose sum is σ = 3588480. Its totient is φ = 1076400.

The previous prime is 2018383. The next prime is 2018407. The reversal of 2018385 is 5838102.

It is a happy number.

It is not a de Polignac number, because 2018385 - 2¹ = 2018383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2018381) 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, 7341 + ... + 7610.

It is an arithmetic number, because the mean of its divisors is an integer number (224280).

2^2018385 is an apocalyptic number.

It is an amenable number.

2018385 is a deficient number, since it is larger than the sum of its proper divisors (1570095).

2018385 is a wasteful number, since it uses less digits than its factorization.

2018385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14965 (or 14959 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2018385 is about 1420.6987717317. The cubic root of 2018385 is about 126.3769888477.

The spelling of 2018385 in words is "two million, eighteen thousand, three hundred eighty-five".