445224 has 32 divisors (see below), whose sum is σ = 1199520. Its totient is φ = 136896.

The previous prime is 445199. The next prime is 445229. The reversal of 445224 is 422544.

It is a self number, because there is not a number n which added to its sum of digits gives 445224.

It is not an unprimeable number, because it can be changed into a prime (445229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402 + ... + 1025.

It is an arithmetic number, because the mean of its divisors is an integer number (37485).

2⁴⁴⁵²²⁴ is an apocalyptic number.

It is an amenable number.

445224 is an abundant number, since it is smaller than the sum of its proper divisors (754296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445224 is a wasteful number, since it uses less digits than its factorization.

445224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449 (or 1445 counting only the distinct ones).

The product of its digits is 1280, while the sum is 21.

The square root of 445224 is about 667.2510771816. The cubic root of 445224 is about 76.3588751927.

Adding to 445224 its reverse (422544), we get a palindrome (867768).

The spelling of 445224 in words is "four hundred forty-five thousand, two hundred twenty-four".