228260 has 24 divisors (see below), whose sum is σ = 488376. Its totient is φ = 89600.

The previous prime is 228257. The next prime is 228281. The reversal of 228260 is 62822.

It can be written as a sum of positive squares in 4 ways, for example, as 18496 + 209764 = 136^2 + 458^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228260.

It is an unprimeable 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, 1964 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (20349).

2²²⁸²⁶⁰ is an apocalyptic number.

228260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228260 is an abundant number, since it is smaller than the sum of its proper divisors (260116).

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

228260 is a wasteful number, since it uses less digits than its factorization.

228260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 228260 is about 477.7656329206. The cubic root of 228260 is about 61.1143604027.

The spelling of 228260 in words is "two hundred twenty-eight thousand, two hundred sixty".