302239 has 4 divisors (see below), whose sum is σ = 345424. Its totient is φ = 259056.

The previous prime is 302227. The next prime is 302261. The reversal of 302239 is 932203.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 302239 - 2⁷ = 302111 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 0 + 2¹⁷ + 2¹⁷ + 3⁹ + 9³ .

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302279) 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 3 ways as a sum of consecutive naturals, for example, 21582 + ... + 21595.

It is an arithmetic number, because the mean of its divisors is an integer number (86356).

2³⁰²²³⁹ is an apocalyptic number.

302239 is a deficient number, since it is larger than the sum of its proper divisors (43185).

302239 is an equidigital number, since it uses as much as digits as its factorization.

302239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43184.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 302239 is about 549.7626760703. The cubic root of 302239 is about 67.1094224447.

The spelling of 302239 in words is "three hundred two thousand, two hundred thirty-nine".