4243385 has 8 divisors (see below), whose sum is σ = 5313600. Its totient is φ = 3247024.

The previous prime is 4243361. The next prime is 4243391. The reversal of 4243385 is 5833424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4243385 - 2⁶ = 4243321 is a prime.

It is a d-powerful number, because it can be written as 4³ + 2 + 4¹¹ + 3⁸ + 3⁸ + 8⁵ + 5⁵ .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18335 + ... + 18564.

It is an arithmetic number, because the mean of its divisors is an integer number (664200).

Almost surely, 2^4243385 is an apocalyptic number.

It is an amenable number.

4243385 is a deficient number, since it is larger than the sum of its proper divisors (1070215).

4243385 is a wasteful number, since it uses less digits than its factorization.

4243385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36927.

The product of its digits is 11520, while the sum is 29.

The square root of 4243385 is about 2059.9478148730. The cubic root of 4243385 is about 161.8965070831.

The spelling of 4243385 in words is "four million, two hundred forty-three thousand, three hundred eighty-five".