226398 has 16 divisors (see below), whose sum is σ = 458640. Its totient is φ = 74496.

The previous prime is 226397. The next prime is 226409. The reversal of 226398 is 893622.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226397) by changing a digit.

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, 388 + ... + 776.

It is an arithmetic number, because the mean of its divisors is an integer number (28665).

2²²⁶³⁹⁸ is an apocalyptic number.

226398 is an abundant number, since it is smaller than the sum of its proper divisors (232242).

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

226398 is a wasteful number, since it uses less digits than its factorization.

226398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its digits is 5184, while the sum is 30.

The square root of 226398 is about 475.8129884734. The cubic root of 226398 is about 60.9477291178.

The spelling of 226398 in words is "two hundred twenty-six thousand, three hundred ninety-eight".