445473 has 16 divisors (see below), whose sum is σ = 754560. Its totient is φ = 254448.

The previous prime is 445463. The next prime is 445477. The reversal of 445473 is 374544.

It is not a de Polignac number, because 445473 - 2¹⁰ = 444449 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 4² + 4⁸ + 4⁹ + 5³ + 7⁶ + 3 .

It is not an unprimeable number, because it can be changed into a prime (445477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (47160).

2⁴⁴⁵⁴⁷³ is an apocalyptic number.

It is an amenable number.

445473 is a deficient number, since it is larger than the sum of its proper divisors (309087).

445473 is a wasteful number, since it uses less digits than its factorization.

445473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373 (or 2367 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 445473 is about 667.4376375363. The cubic root of 445473 is about 76.3731075915.

The spelling of 445473 in words is "four hundred forty-five thousand, four hundred seventy-three".