4243305 has 16 divisors (see below), whose sum is σ = 7406784. Its totient is φ = 2057280.

The previous prime is 4243297. The next prime is 4243307. The reversal of 4243305 is 5033424.

It is a happy number.

4243305 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4243305 - 2³ = 4243297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243307) 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, 12694 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (462924).

Almost surely, 2^4243305 is an apocalyptic number.

It is an amenable number.

4243305 is a deficient number, since it is larger than the sum of its proper divisors (3163479).

4243305 is a wasteful number, since it uses less digits than its factorization.

4243305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25736.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 4243305 is about 2059.9283968138. The cubic root of 4243305 is about 161.8954896719.

Adding to 4243305 its reverse (5033424), we get a palindrome (9276729).

The spelling of 4243305 in words is "four million, two hundred forty-three thousand, three hundred five".