445249 has 4 divisors (see below), whose sum is σ = 508864. Its totient is φ = 381636.

The previous prime is 445229. The next prime is 445261. The reversal of 445249 is 942544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445249 - 2¹⁵ = 412481 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 31797 + ... + 31810.

It is an arithmetic number, because the mean of its divisors is an integer number (127216).

2⁴⁴⁵²⁴⁹ is an apocalyptic number.

It is an amenable number.

445249 is a deficient number, since it is larger than the sum of its proper divisors (63615).

445249 is an equidigital number, since it uses as much as digits as its factorization.

445249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63614.

The product of its digits is 5760, while the sum is 28.

The square root of 445249 is about 667.2698104965. The cubic root of 445249 is about 76.3603043880.

The spelling of 445249 in words is "four hundred forty-five thousand, two hundred forty-nine".