226506 has 16 divisors (see below), whose sum is σ = 517824. Its totient is φ = 64704.

The previous prime is 226487. The next prime is 226511. The reversal of 226506 is 605622.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

226506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (32364).

2²²⁶⁵⁰⁶ is an apocalyptic number.

226506 is an abundant number, since it is smaller than the sum of its proper divisors (291318).

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

226506 is a wasteful number, since it uses less digits than its factorization.

226506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5405.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 226506 is about 475.9264649082. The cubic root of 226506 is about 60.9574189978.

The spelling of 226506 in words is "two hundred twenty-six thousand, five hundred six".