384445 has 8 divisors (see below), whose sum is σ = 481536. Its totient is φ = 294096.

The previous prime is 384437. The next prime is 384469. The reversal of 384445 is 544483.

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

It is a cyclic number.

It is not a de Polignac number, because 384445 - 2³ = 384437 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (60192).

2³⁸⁴⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

384445 is a deficient number, since it is larger than the sum of its proper divisors (97091).

384445 is a wasteful number, since it uses less digits than its factorization.

384445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371.

The product of its digits is 7680, while the sum is 28.

The square root of 384445 is about 620.0362892606. The cubic root of 384445 is about 72.7128899115.

It can be divided in two parts, 3 and 84445, that added together give a palindrome (84448).

The spelling of 384445 in words is "three hundred eighty-four thousand, four hundred forty-five".