226445 has 4 divisors (see below), whose sum is σ = 271740. Its totient is φ = 181152.

The previous prime is 226433. The next prime is 226451. The reversal of 226445 is 544622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137641 + 88804 = 371^2 + 298^2 .

It is a cyclic number.

It is not a de Polignac number, because 226445 - 2⁶ = 226381 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 4⁴ + 6⁵ + 4⁵ + 5⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 226445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22640 + ... + 22649.

It is an arithmetic number, because the mean of its divisors is an integer number (67935).

2²²⁶⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

226445 is a deficient number, since it is larger than the sum of its proper divisors (45295).

226445 is an equidigital number, since it uses as much as digits as its factorization.

226445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45294.

The product of its digits is 1920, while the sum is 23.

The square root of 226445 is about 475.8623750624. The cubic root of 226445 is about 60.9519463887.

The spelling of 226445 in words is "two hundred twenty-six thousand, four hundred forty-five".