224005444 has 18 divisors (see below), whose sum is σ = 424484970. Its totient is φ = 103386816.

The previous prime is 224005409. The next prime is 224005471. The reversal of 224005444 is 444500422.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7562500 + 216442944 = 2750^2 + 14712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165009 + ... + 166360.

Almost surely, 2^224005444 is an apocalyptic number.

It is an amenable number.

224005444 is a deficient number, since it is larger than the sum of its proper divisors (200479526).

224005444 is a wasteful number, since it uses less digits than its factorization.

224005444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331399 (or 331384 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 224005444 is about 14966.8114172659. The cubic root of 224005444 is about 607.3227143324.

Adding to 224005444 its reverse (444500422), we get a palindrome (668505866).

The spelling of 224005444 in words is "two hundred twenty-four million, five thousand, four hundred forty-four".