2301985 has 16 divisors (see below), whose sum is σ = 3196800. Its totient is φ = 1558656.

The previous prime is 2301977. The next prime is 2301989. The reversal of 2301985 is 5891032.

It is a cyclic number.

It is not a de Polignac number, because 2301985 - 2³ = 2301977 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301989) 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, 2746 + ... + 3484.

It is an arithmetic number, because the mean of its divisors is an integer number (199800).

2^2301985 is an apocalyptic number.

It is an amenable number.

2301985 is a deficient number, since it is larger than the sum of its proper divisors (894815).

2301985 is an equidigital number, since it uses as much as digits as its factorization.

2301985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2301985 is about 1517.2293827896. The cubic root of 2301985 is about 132.0385753496.

It can be divided in two parts, 23019 and 85, that added together give a square (23104 = 152²).

The spelling of 2301985 in words is "two million, three hundred one thousand, nine hundred eighty-five".