228634 has 12 divisors (see below), whose sum is σ = 399114. Its totient is φ = 97944.

The previous prime is 228619. The next prime is 228637. The reversal of 228634 is 436822.

It is a happy number.

228634 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in only one way, i.e., 207025 + 21609 = 455^2 + 147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 228599 and 228608.

It is not an unprimeable number, because it can be changed into a prime (228637) 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 5 ways as a sum of consecutive naturals, for example, 1069 + ... + 1264.

2²²⁸⁶³⁴ is an apocalyptic number.

228634 is a deficient number, since it is larger than the sum of its proper divisors (170480).

228634 is a wasteful number, since it uses less digits than its factorization.

228634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349 (or 2342 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 228634 is about 478.1568780223. The cubic root of 228634 is about 61.1477204580.

The spelling of 228634 in words is "two hundred twenty-eight thousand, six hundred thirty-four".