226518 has 16 divisors (see below), whose sum is σ = 477120. Its totient is φ = 71496.

The previous prime is 226511. The next prime is 226531. The reversal of 226518 is 815622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226511) by changing a digit.

226518 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 7 ways as a sum of consecutive naturals, for example, 880 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (29820).

2²²⁶⁵¹⁸ is an apocalyptic number.

226518 is an abundant number, since it is smaller than the sum of its proper divisors (250602).

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

226518 is a wasteful number, since it uses less digits than its factorization.

226518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011.

The product of its digits is 960, while the sum is 24.

The square root of 226518 is about 475.9390717308. The cubic root of 226518 is about 60.9584954610.

The spelling of 226518 in words is "two hundred twenty-six thousand, five hundred eighteen".