2318985 has 24 divisors (see below), whose sum is σ = 4160520. Its totient is φ = 1193472.

The previous prime is 2318959. The next prime is 2319013. The reversal of 2318985 is 5898132.

It can be written as a sum of positive squares in 4 ways, for example, as 254016 + 2064969 = 504^2 + 1437^2 .

It is not a de Polignac number, because 2318985 - 2¹⁸ = 2056841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 417 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (173355).

2^2318985 is an apocalyptic number.

It is an amenable number.

2318985 is a deficient number, since it is larger than the sum of its proper divisors (1841535).

2318985 is a wasteful number, since it uses less digits than its factorization.

2318985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817 (or 1814 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2318985 is about 1522.8213946488. The cubic root of 2318985 is about 132.3628104187.

It can be divided in two parts, 231 and 8985, that added together give a square (9216 = 96²).

The spelling of 2318985 in words is "two million, three hundred eighteen thousand, nine hundred eighty-five".