4238509 has 12 divisors (see below), whose sum is σ = 4864608. Its totient is φ = 3683240.

The previous prime is 4238459. The next prime is 4238513. The reversal of 4238509 is 9058324.

It is not a de Polignac number, because 4238509 - 2¹¹ = 4236461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4238519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2022 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (405384).

Almost surely, 2^4238509 is an apocalyptic number.

It is an amenable number.

4238509 is a deficient number, since it is larger than the sum of its proper divisors (626099).

4238509 is a wasteful number, since it uses less digits than its factorization.

4238509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1557 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 4238509 is about 2058.7639495581. The cubic root of 4238509 is about 161.8344724947.

The spelling of 4238509 in words is "four million, two hundred thirty-eight thousand, five hundred nine".