228394 has 4 divisors (see below), whose sum is σ = 342594. Its totient is φ = 114196.

The previous prime is 228383. The next prime is 228409. The reversal of 228394 is 493822.

228394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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., 172225 + 56169 = 415^2 + 237^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57097 + ... + 57100.

2²²⁸³⁹⁴ is an apocalyptic number.

228394 is a deficient number, since it is larger than the sum of its proper divisors (114200).

228394 is a wasteful number, since it uses less digits than its factorization.

228394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114199.

The product of its digits is 3456, while the sum is 28.

The square root of 228394 is about 477.9058484681. The cubic root of 228394 is about 61.1263171221.

The spelling of 228394 in words is "two hundred twenty-eight thousand, three hundred ninety-four".