445443 has 8 divisors (see below), whose sum is σ = 610128. Its totient is φ = 288864.

The previous prime is 445433. The next prime is 445447. The reversal of 445443 is 344544.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445443 - 2⁴ = 445427 is a prime.

It is an Ulam number.

It is a plaindrome in base 13.

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 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 2117.

It is an arithmetic number, because the mean of its divisors is an integer number (76266).

2⁴⁴⁵⁴⁴³ is an apocalyptic number.

445443 is a deficient number, since it is larger than the sum of its proper divisors (164685).

445443 is a wasteful number, since it uses less digits than its factorization.

445443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053.

The product of its digits is 3840, while the sum is 24.

The square root of 445443 is about 667.4151631481. The cubic root of 445443 is about 76.3713931257.

Adding to 445443 its reverse (344544), we get a palindrome (789987).

It can be divided in two parts, 445 and 443, that added together give a palindrome (888).

The spelling of 445443 in words is "four hundred forty-five thousand, four hundred forty-three".