226443 has 16 divisors (see below), whose sum is σ = 354816. Its totient is φ = 125760.

The previous prime is 226433. The next prime is 226451. The reversal of 226443 is 344622.

It is not a de Polignac number, because 226443 - 2⁴ = 226427 is a prime.

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

It is a d-powerful number, because it can be written as 2⁹ + 2¹¹ + 4² + 6⁶ + 4³ + 3¹¹ .

226443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (226433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730 + ... + 992.

It is an arithmetic number, because the mean of its divisors is an integer number (22176).

2²²⁶⁴⁴³ is an apocalyptic number.

226443 is a deficient number, since it is larger than the sum of its proper divisors (128373).

226443 is a wasteful number, since it uses less digits than its factorization.

226443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314.

The product of its digits is 1152, while the sum is 21.

The square root of 226443 is about 475.8602736098. The cubic root of 226443 is about 60.9517669422.

The spelling of 226443 in words is "two hundred twenty-six thousand, four hundred forty-three".