225446 has 24 divisors (see below), whose sum is σ = 395280. Its totient is φ = 96096.

The previous prime is 225431. The next prime is 225457. The reversal of 225446 is 644522.

225446 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

Its product of digits (1920) is a multiple of the sum of its prime factors (80).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

225446 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 11 ways as a sum of consecutive naturals, for example, 7760 + ... + 7788.

It is an arithmetic number, because the mean of its divisors is an integer number (16470).

2²²⁵⁴⁴⁶ is an apocalyptic number.

225446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

225446 is a deficient number, since it is larger than the sum of its proper divisors (169834).

225446 is a wasteful number, since it uses less digits than its factorization.

225446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 67 counting only the distinct ones).

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

The square root of 225446 is about 474.8115415615. The cubic root of 225446 is about 60.8621810179.

Adding to 225446 its reverse (644522), we get a palindrome (869968).

It can be divided in two parts, 2254 and 46, that multiplied together give a square (103684 = 322²).

The spelling of 225446 in words is "two hundred twenty-five thousand, four hundred forty-six".