228922 has 8 divisors (see below), whose sum is σ = 363636. Its totient is φ = 107712.

The previous prime is 228913. The next prime is 228923. The reversal of 228922 is 229822.

228922 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 175561 + 53361 = 419^2 + 231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (228923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333 + ... + 3400.

2²²⁸⁹²² is an apocalyptic number.

228922 is a deficient number, since it is larger than the sum of its proper divisors (134714).

228922 is a wasteful number, since it uses less digits than its factorization.

228922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752.

The product of its digits is 1152, while the sum is 25.

The square root of 228922 is about 478.4579396352. The cubic root of 228922 is about 61.1733846990.

Subtracting 228922 from its reverse (229822), we obtain a square (900 = 30²).

The spelling of 228922 in words is "two hundred twenty-eight thousand, nine hundred twenty-two".