4240085 has 4 divisors (see below), whose sum is σ = 5088108. Its totient is φ = 3392064.

The previous prime is 4240079. The next prime is 4240091. The reversal of 4240085 is 5800424.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4240079) and next prime (4240091).

It can be written as a sum of positive squares in 2 ways, for example, as 1343281 + 2896804 = 1159^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240085 - 2⁴ = 4240069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4240085.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424004 + ... + 424013.

It is an arithmetic number, because the mean of its divisors is an integer number (1272027).

Almost surely, 2^4240085 is an apocalyptic number.

It is an amenable number.

4240085 is a deficient number, since it is larger than the sum of its proper divisors (848023).

4240085 is an equidigital number, since it uses as much as digits as its factorization.

4240085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848022.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 4240085 is about 2059.1466679185. The cubic root of 4240085 is about 161.8545282519.

The spelling of 4240085 in words is "four million, two hundred forty thousand, eighty-five".