228322 has 4 divisors (see below), whose sum is σ = 342486. Its totient is φ = 114160.

The previous prime is 228311. The next prime is 228331. The reversal of 228322 is 223822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 143641 + 84681 = 379^2 + 291^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 228322.

It is an unprimeable number.

228322 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 as a sum of consecutive naturals, namely, 57079 + ... + 57082.

2²²⁸³²² is an apocalyptic number.

228322 is a deficient number, since it is larger than the sum of its proper divisors (114164).

228322 is a wasteful number, since it uses less digits than its factorization.

228322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114163.

The product of its digits is 384, while the sum is 19.

The square root of 228322 is about 477.8305138854. The cubic root of 228322 is about 61.1198931976.

It can be divided in two parts, 2 and 28322, that multiplied together give a square (56644 = 238²).

The spelling of 228322 in words is "two hundred twenty-eight thousand, three hundred twenty-two".