4085245 has 4 divisors (see below), whose sum is σ = 4902300. Its totient is φ = 3268192.

The previous prime is 4085243. The next prime is 4085261. The reversal of 4085245 is 5425804.

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 2709316 + 1375929 = 1646^2 + 1173^2 .

It is a cyclic number.

It is not a de Polignac number, because 4085245 - 2¹ = 4085243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4085243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408520 + ... + 408529.

It is an arithmetic number, because the mean of its divisors is an integer number (1225575).

Almost surely, 2^4085245 is an apocalyptic number.

It is an amenable number.

4085245 is a deficient number, since it is larger than the sum of its proper divisors (817055).

4085245 is an equidigital number, since it uses as much as digits as its factorization.

4085245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817054.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 4085245 is about 2021.1989016423. The cubic root of 4085245 is about 159.8598381900.

The spelling of 4085245 in words is "four million, eighty-five thousand, two hundred forty-five".