4528239 has 8 divisors (see below), whose sum is σ = 6392880. Its totient is φ = 2841216.

The previous prime is 4528229. The next prime is 4528241. The reversal of 4528239 is 9328254.

It is a happy number.

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

It is not a de Polignac number, because 4528239 - 2⁵ = 4528207 is a prime.

It is a super-2 number, since 2×4528239² = 41009896882242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4528219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44344 + ... + 44445.

It is an arithmetic number, because the mean of its divisors is an integer number (799110).

Almost surely, 2^4528239 is an apocalyptic number.

4528239 is a deficient number, since it is larger than the sum of its proper divisors (1864641).

4528239 is a wasteful number, since it uses less digits than its factorization.

4528239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88809.

The product of its digits is 17280, while the sum is 33.

The square root of 4528239 is about 2127.9659301784. The cubic root of 4528239 is about 165.4409874701.

The spelling of 4528239 in words is "four million, five hundred twenty-eight thousand, two hundred thirty-nine".