445449 has 4 divisors (see below), whose sum is σ = 593936. Its totient is φ = 296964.

The previous prime is 445447. The next prime is 445453. The reversal of 445449 is 944544.

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 not a de Polignac number, because 445449 - 2¹ = 445447 is a prime.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445449.

It is not an unprimeable number, because it can be changed into a prime (445447) 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, 74239 + ... + 74244.

It is an arithmetic number, because the mean of its divisors is an integer number (148484).

2⁴⁴⁵⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

445449 is a deficient number, since it is larger than the sum of its proper divisors (148487).

445449 is a wasteful number, since it uses less digits than its factorization.

445449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148486.

The product of its digits is 11520, while the sum is 30.

The square root of 445449 is about 667.4196580863. The cubic root of 445449 is about 76.3717360250.

The spelling of 445449 in words is "four hundred forty-five thousand, four hundred forty-nine".