228650 has 24 divisors (see below), whose sum is σ = 451980. Its totient is φ = 85760.

The previous prime is 228647. The next prime is 228677. The reversal of 228650 is 56822.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 58081 + 170569 = 241^2 + 413^2 .

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 11 ways as a sum of consecutive naturals, for example, 716 + ... + 984.

2²²⁸⁶⁵⁰ is an apocalyptic number.

228650 is a deficient number, since it is larger than the sum of its proper divisors (223330).

228650 is a wasteful number, since it uses less digits than its factorization.

228650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 228650 is about 478.1736086402. The cubic root of 228650 is about 61.1491468144.

It can be divided in two parts, 228 and 650, that added together give a palindrome (878).

The spelling of 228650 in words is "two hundred twenty-eight thousand, six hundred fifty".