226840 has 32 divisors (see below), whose sum is σ = 524880. Its totient is φ = 88192.

The previous prime is 226823. The next prime is 226843. The reversal of 226840 is 48622.

226840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2067 + ... + 2173.

2²²⁶⁸⁴⁰ is an apocalyptic number.

226840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262440).

226840 is an abundant number, since it is smaller than the sum of its proper divisors (298040).

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

226840 is a wasteful number, since it uses less digits than its factorization.

226840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 226840 is about 476.2772301927. The cubic root of 226840 is about 60.9873663705.

The spelling of 226840 in words is "two hundred twenty-six thousand, eight hundred forty".