228356 has 6 divisors (see below), whose sum is σ = 399630. Its totient is φ = 114176.

The previous prime is 228353. The next prime is 228359. The reversal of 228356 is 653822.

It is an interprime number because it is at equal distance from previous prime (228353) and next prime (228359).

It can be written as a sum of positive squares in only one way, i.e., 188356 + 40000 = 434^2 + 200^2 .

It is not an unprimeable number, because it can be changed into a prime (228353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28541 + ... + 28548.

It is an arithmetic number, because the mean of its divisors is an integer number (66605).

2²²⁸³⁵⁶ is an apocalyptic number.

It is an amenable number.

228356 is a deficient number, since it is larger than the sum of its proper divisors (171274).

228356 is a wasteful number, since it uses less digits than its factorization.

228356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57093 (or 57091 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 228356 is about 477.8660900294. The cubic root of 228356 is about 61.1229268858.

The spelling of 228356 in words is "two hundred twenty-eight thousand, three hundred fifty-six".