305224 has 8 divisors (see below), whose sum is σ = 572310. Its totient is φ = 152608.

The previous prime is 305219. The next prime is 305231. The reversal of 305224 is 422503.

It can be written as a sum of positive squares in only one way, i.e., 232324 + 72900 = 482^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 305198 and 305207.

It is an unprimeable number.

305224 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 as a sum of consecutive naturals, namely, 19069 + ... + 19084.

2³⁰⁵²²⁴ is an apocalyptic number.

It is an amenable number.

305224 is a deficient number, since it is larger than the sum of its proper divisors (267086).

305224 is a wasteful number, since it uses less digits than its factorization.

305224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38159 (or 38155 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 305224 is about 552.4708137087. The cubic root of 305224 is about 67.3296297890.

Adding to 305224 its reverse (422503), we get a palindrome (727727).

It can be divided in two parts, 305 and 224, that added together give a square (529 = 23²).

The spelling of 305224 in words is "three hundred five thousand, two hundred twenty-four".