4238305 has 8 divisors (see below), whose sum is σ = 5121000. Its totient is φ = 3367296.

The previous prime is 4238303. The next prime is 4238309. The reversal of 4238305 is 5038324.

It can be written as a sum of positive squares in 4 ways, for example, as 613089 + 3625216 = 783^2 + 1904^2 .

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 4238305 - 2¹ = 4238303 is a prime.

It is a super-3 number, since 3×4238305³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 4¹¹ + 2¹³ + 3⁶ + 8⁵ + 3⁷ + 0 + 5³ .

4238305 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4238305.

It is not an unprimeable number, because it can be changed into a prime (4238303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2100 + ... + 3589.

It is an arithmetic number, because the mean of its divisors is an integer number (640125).

Almost surely, 2^4238305 is an apocalyptic number.

It is an amenable number.

4238305 is a deficient number, since it is larger than the sum of its proper divisors (882695).

4238305 is a wasteful number, since it uses less digits than its factorization.

4238305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 4238305 is about 2058.7144046710. The cubic root of 4238305 is about 161.8318760815.

The spelling of 4238305 in words is "four million, two hundred thirty-eight thousand, three hundred five".