4242305 has 4 divisors (see below), whose sum is σ = 5090772. Its totient is φ = 3393840.

The previous prime is 4242289. The next prime is 4242307. The reversal of 4242305 is 5032424.

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 2972176 + 1270129 = 1724^2 + 1127^2 .

It is not a de Polignac number, because 4242305 - 2⁴ = 4242289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4242307) 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, 424226 + ... + 424235.

It is an arithmetic number, because the mean of its divisors is an integer number (1272693).

Almost surely, 2^4242305 is an apocalyptic number.

It is an amenable number.

4242305 is a deficient number, since it is larger than the sum of its proper divisors (848467).

4242305 is an equidigital number, since it uses as much as digits as its factorization.

4242305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848466.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4242305 is about 2059.6856556281. The cubic root of 4242305 is about 161.8827709532.

Adding to 4242305 its reverse (5032424), we get a palindrome (9274729).

The spelling of 4242305 in words is "four million, two hundred forty-two thousand, three hundred five".