478388 has 12 divisors (see below), whose sum is σ = 857892. Its totient is φ = 233280.

The previous prime is 478351. The next prime is 478391. The reversal of 478388 is 883874.

It can be written as a sum of positive squares in 2 ways, for example, as 283024 + 195364 = 532^2 + 442^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1295 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (71491).

2⁴⁷⁸³⁸⁸ is an apocalyptic number.

It is an amenable number.

478388 is a deficient number, since it is larger than the sum of its proper divisors (379504).

478388 is a wasteful number, since it uses less digits than its factorization.

478388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962 (or 2960 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 478388 is about 691.6559838532. The cubic root of 478388 is about 78.2096049845.

The spelling of 478388 in words is "four hundred seventy-eight thousand, three hundred eighty-eight".