239228 has 12 divisors (see below), whose sum is σ = 456792. Its totient is φ = 108720.

The previous prime is 239201. The next prime is 239231. The reversal of 239228 is 822932.

It is a junction number, because it is equal to n+sod(n) for n = 239197 and 239206.

It is a congruent number.

It is an unprimeable number.

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, 2675 + ... + 2762.

It is an arithmetic number, because the mean of its divisors is an integer number (38066).

2²³⁹²²⁸ is an apocalyptic number.

It is an amenable number.

239228 is a deficient number, since it is larger than the sum of its proper divisors (217564).

239228 is a wasteful number, since it uses less digits than its factorization.

239228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5450 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 239228 is about 489.1093947166. The cubic root of 239228 is about 62.0779456710.

The spelling of 239228 in words is "two hundred thirty-nine thousand, two hundred twenty-eight".