2388985 has 4 divisors (see below), whose sum is σ = 2866788. Its totient is φ = 1911184.

The previous prime is 2388983. The next prime is 2389001. The reversal of 2388985 is 5898832.

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 1382976 + 1006009 = 1176^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 2388985 - 2¹ = 2388983 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁸ + 3⁹ + 8² + 8⁶ + 9⁴ + 8⁷ + 5⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2388983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238894 + ... + 238903.

It is an arithmetic number, because the mean of its divisors is an integer number (716697).

2^2388985 is an apocalyptic number.

It is an amenable number.

2388985 is a deficient number, since it is larger than the sum of its proper divisors (477803).

2388985 is an equidigital number, since it uses as much as digits as its factorization.

2388985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477802.

The product of its digits is 138240, while the sum is 43.

The square root of 2388985 is about 1545.6341740528. The cubic root of 2388985 is about 133.6814479694.

The spelling of 2388985 in words is "two million, three hundred eighty-eight thousand, nine hundred eighty-five".