239530 has 16 divisors (see below), whose sum is σ = 456840. Its totient is φ = 90112.

The previous prime is 239527. The next prime is 239531. The reversal of 239530 is 35932.

It can be written as a sum of positive squares in 4 ways, for example, as 151321 + 88209 = 389^2 + 297^2 .

It is a d-powerful number, because it can be written as 2⁷ + 3¹⁰ + 5⁵ + 9² + 3¹¹ + 0 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239531) 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, 535 + ... + 874.

2²³⁹⁵³⁰ is an apocalyptic number.

239530 is a deficient number, since it is larger than the sum of its proper divisors (217310).

239530 is a wasteful number, since it uses less digits than its factorization.

239530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 239530 is about 489.4180217360. The cubic root of 239530 is about 62.1040569626.

The spelling of 239530 in words is "two hundred thirty-nine thousand, five hundred thirty".