228380 has 24 divisors (see below), whose sum is σ = 505680. Its totient is φ = 86400.

The previous prime is 228359. The next prime is 228383. The reversal of 228380 is 83822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (21070).

2²²⁸³⁸⁰ is an apocalyptic number.

228380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252840).

228380 is an abundant number, since it is smaller than the sum of its proper divisors (277300).

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

228380 is a wasteful number, since it uses less digits than its factorization.

228380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 228380 is about 477.8912010071. The cubic root of 228380 is about 61.1250681314.

It can be divided in two parts, 2 and 28380, that added together give a palindrome (28382).

The spelling of 228380 in words is "two hundred twenty-eight thousand, three hundred eighty".