478445 has 8 divisors (see below), whose sum is σ = 626400. Its totient is φ = 347920.

The previous prime is 478441. The next prime is 478451. The reversal of 478445 is 544874.

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

It is not a de Polignac number, because 478445 - 2² = 478441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478441) 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, 4295 + ... + 4404.

It is an arithmetic number, because the mean of its divisors is an integer number (78300).

2⁴⁷⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

478445 is a deficient number, since it is larger than the sum of its proper divisors (147955).

478445 is a wasteful number, since it uses less digits than its factorization.

478445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715.

The product of its digits is 17920, while the sum is 32.

The square root of 478445 is about 691.6971880816. The cubic root of 478445 is about 78.2127110897.

The spelling of 478445 in words is "four hundred seventy-eight thousand, four hundred forty-five".