4392239 has 8 divisors (see below), whose sum is σ = 4704480. Its totient is φ = 4086016.

The previous prime is 4392221. The next prime is 4392259. The reversal of 4392239 is 9322934.

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 4392239 - 2²⁰ = 3343663 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 (4392209) 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, 62 + ... + 2964.

It is an arithmetic number, because the mean of its divisors is an integer number (588060).

Almost surely, 2^4392239 is an apocalyptic number.

4392239 is a deficient number, since it is larger than the sum of its proper divisors (312241).

4392239 is a wasteful number, since it uses less digits than its factorization.

4392239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009.

The product of its digits is 11664, while the sum is 32.

The square root of 4392239 is about 2095.7669240638. The cubic root of 4392239 is about 163.7678526852.

The spelling of 4392239 in words is "four million, three hundred ninety-two thousand, two hundred thirty-nine".