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224444 = 22115101

224444 has 12 divisors (see below), whose sum is σ = 428568. Its totient is φ = 102000.

The previous prime is 224443. The next prime is 224449. The reversal of 224444 is 444422.

It is a nude number because it is divisible by every one of its digits.

224444 is a modest number, since divided by 444 gives 224 as remainder.

It is a plaindrome in base 10 and base 15.

It is a zygodrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 224444.

It is not an unprimeable number, because it can be changed into a prime (224443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2507 + ... + 2594.

It is an arithmetic number, because the mean of its divisors is an integer number (35714).

It is a self-describing number.

2224444 is an apocalyptic number.

It is an amenable number.

224444 is a deficient number, since it is larger than the sum of its proper divisors (204124).

224444 is a wasteful number, since it uses less digits than its factorization.

224444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116 (or 5114 counting only the distinct ones).

The product of its digits is 1024, while the sum is 20.

The square root of 224444 is about 473.7552110531. The cubic root of 224444 is about 60.7718793089.

Adding to 224444 its reverse (444422), we get a palindrome (668866).

The spelling of 224444 in words is "two hundred twenty-four thousand, four hundred forty-four", and thus it is an iban number.

Divisors: 1 2 4 11 22 44 5101 10202 20404 56111 112222 224444