226818 has 12 divisors (see below), whose sum is σ = 491478. Its totient is φ = 75600.

The previous prime is 226817. The next prime is 226819. The reversal of 226818 is 818622.

It is an interprime number because it is at equal distance from previous prime (226817) and next prime (226819).

It can be written as a sum of positive squares in only one way, i.e., 205209 + 21609 = 453^2 + 147^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 226791 and 226800.

It is not an unprimeable number, because it can be changed into a prime (226813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6283 + ... + 6318.

2²²⁶⁸¹⁸ is an apocalyptic number.

226818 is an abundant number, since it is smaller than the sum of its proper divisors (264660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226818 is a wasteful number, since it uses less digits than its factorization.

226818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609 (or 12606 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 226818 is about 476.2541338403. The cubic root of 226818 is about 60.9853946938.

The spelling of 226818 in words is "two hundred twenty-six thousand, eight hundred eighteen".