226388 has 6 divisors (see below), whose sum is σ = 396186. Its totient is φ = 113192.

The previous prime is 226381. The next prime is 226397. The reversal of 226388 is 883622.

226388 is digitally balanced in base 2, 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 only one way, i.e., 169744 + 56644 = 412^2 + 238^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 226388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226381) by changing a digit.

226388 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, 28295 + ... + 28302.

It is an arithmetic number, because the mean of its divisors is an integer number (66031).

2²²⁶³⁸⁸ is an apocalyptic number.

It is an amenable number.

226388 is a deficient number, since it is larger than the sum of its proper divisors (169798).

226388 is a wasteful number, since it uses less digits than its factorization.

226388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56601 (or 56599 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 226388 is about 475.8024800272. The cubic root of 226388 is about 60.9468317508.

The spelling of 226388 in words is "two hundred twenty-six thousand, three hundred eighty-eight".