478338 has 24 divisors (see below), whose sum is σ = 1113552. Its totient is φ = 136584.

The previous prime is 478321. The next prime is 478339. The reversal of 478338 is 833874.

It is a junction number, because it is equal to n+sod(n) for n = 478299 and 478308.

It is not an unprimeable number, because it can be changed into a prime (478339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 520 + ... + 1107.

It is an arithmetic number, because the mean of its divisors is an integer number (46398).

2⁴⁷⁸³³⁸ is an apocalyptic number.

478338 is an abundant number, since it is smaller than the sum of its proper divisors (635214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

478338 is a wasteful number, since it uses less digits than its factorization.

478338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1639 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 478338 is about 691.6198377722. The cubic root of 478338 is about 78.2068801276.

It can be divided in two parts, 47 and 8338, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 478338 in words is "four hundred seventy-eight thousand, three hundred thirty-eight".