445481 has 4 divisors (see below), whose sum is σ = 451200. Its totient is φ = 439764.

The previous prime is 445477. The next prime is 445499. The reversal of 445481 is 184544.

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 445481 - 2² = 445477 is a prime.

It is a super-2 number, since 2×445481² = 396906642722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 445481.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445481.

It is not an unprimeable number, because it can be changed into a prime (447481) 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, 2741 + ... + 2898.

It is an arithmetic number, because the mean of its divisors is an integer number (112800).

2⁴⁴⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

445481 is a deficient number, since it is larger than the sum of its proper divisors (5719).

445481 is an equidigital number, since it uses as much as digits as its factorization.

445481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718.

The product of its digits is 2560, while the sum is 26.

The square root of 445481 is about 667.4436305786. The cubic root of 445481 is about 76.3735647694.

The spelling of 445481 in words is "four hundred forty-five thousand, four hundred eighty-one".