228680 has 16 divisors (see below), whose sum is σ = 514620. Its totient is φ = 91456.

The previous prime is 228677. The next prime is 228707. The reversal of 228680 is 86822.

228680 = T₃₂ + T₃₃ + ... + T₁₁₁.

It can be written as a sum of positive squares in 2 ways, for example, as 228484 + 196 = 478^2 + 14^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2819 + ... + 2898.

2²²⁸⁶⁸⁰ is an apocalyptic number.

228680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228680 is an abundant number, since it is smaller than the sum of its proper divisors (285940).

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

228680 is a wasteful number, since it uses less digits than its factorization.

228680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728 (or 5724 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 228680 is about 478.2049769712. The cubic root of 228680 is about 61.1518210533.

It can be divided in two parts, 2 and 28680, that added together give a palindrome (28682).

The spelling of 228680 in words is "two hundred twenty-eight thousand, six hundred eighty".