226918 has 8 divisors (see below), whose sum is σ = 355248. Its totient is φ = 108504.

The previous prime is 226913. The next prime is 226937. The reversal of 226918 is 819622.

It is a happy number.

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

It is a super-3 number, since 3×226918³ = 35053234333477896, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226913) by changing a digit.

226918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2421 + ... + 2512.

It is an arithmetic number, because the mean of its divisors is an integer number (44406).

2²²⁶⁹¹⁸ is an apocalyptic number.

226918 is a deficient number, since it is larger than the sum of its proper divisors (128330).

226918 is a wasteful number, since it uses less digits than its factorization.

226918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4958.

The product of its digits is 1728, while the sum is 28.

The square root of 226918 is about 476.3591082366. The cubic root of 226918 is about 60.9943558336.

Subtracting 226918 from its reverse (819622), we obtain a cube (592704 = 84³).

The spelling of 226918 in words is "two hundred twenty-six thousand, nine hundred eighteen".