228630239 has 8 divisors (see below), whose sum is σ = 237811200. Its totient is φ = 219562200.

The previous prime is 228630221. The next prime is 228630271. The reversal of 228630239 is 932036822.

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 228630239 - 2¹² = 228626143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228630199 and 228630208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228630209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24089 + ... + 32210.

It is an arithmetic number, because the mean of its divisors is an integer number (29726400).

Almost surely, 2^228630239 is an apocalyptic number.

228630239 is a deficient number, since it is larger than the sum of its proper divisors (9180961).

228630239 is a wasteful number, since it uses less digits than its factorization.

228630239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56461.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 228630239 is about 15120.5237673832. The cubic root of 228630239 is about 611.4738516542.

The spelling of 228630239 in words is "two hundred twenty-eight million, six hundred thirty thousand, two hundred thirty-nine".