228980 has 18 divisors (see below), whose sum is σ = 485394. Its totient is φ = 90736.

The previous prime is 228961. The next prime is 228983. The reversal of 228980 is 89822.

It can be written as a sum of positive squares in only one way, i.e., 183184 + 45796 = 428^2 + 214^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228983) by changing a digit.

228980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2087 + ... + 2193.

2²²⁸⁹⁸⁰ is an apocalyptic number.

228980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228980 is an abundant number, since it is smaller than the sum of its proper divisors (256414).

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

228980 is a wasteful number, since it uses less digits than its factorization.

228980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 228980 is about 478.5185471850. The cubic root of 228980 is about 61.1785505877.

It can be divided in two parts, 2 and 28980, that added together give a palindrome (28982).

The spelling of 228980 in words is "two hundred twenty-eight thousand, nine hundred eighty".