478426 has 8 divisors (see below), whose sum is σ = 772884. Its totient is φ = 220800.

The previous prime is 478421. The next prime is 478427. The reversal of 478426 is 624874.

It can be written as a sum of positive squares in 2 ways, for example, as 455625 + 22801 = 675^2 + 151^2 .

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

It is not an unprimeable number, because it can be changed into a prime (478421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9175 + ... + 9226.

2⁴⁷⁸⁴²⁶ is an apocalyptic number.

478426 is a deficient number, since it is larger than the sum of its proper divisors (294458).

478426 is a wasteful number, since it uses less digits than its factorization.

478426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18416.

The product of its digits is 10752, while the sum is 31.

The square root of 478426 is about 691.6834536115. The cubic root of 478426 is about 78.2116757487.

The spelling of 478426 in words is "four hundred seventy-eight thousand, four hundred twenty-six".