228630 has 16 divisors (see below), whose sum is σ = 548784. Its totient is φ = 60960.

The previous prime is 228619. The next prime is 228637. The reversal of 228630 is 36822.

It is a junction number, because it is equal to n+sod(n) for n = 228597 and 228606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228637) by changing a digit.

228630 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 3781 + ... + 3840.

It is an arithmetic number, because the mean of its divisors is an integer number (34299).

2²²⁸⁶³⁰ is an apocalyptic number.

228630 is an abundant number, since it is smaller than the sum of its proper divisors (320154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228630 is a wasteful number, since it uses less digits than its factorization.

228630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7631.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 228630 is about 478.1526952763. The cubic root of 228630 is about 61.1473638585.

It can be divided in two parts, 228 and 630, that added together give a palindrome (858).

The spelling of 228630 in words is "two hundred twenty-eight thousand, six hundred thirty".