478540 has 24 divisors (see below), whose sum is σ = 1022112. Its totient is φ = 188160.

The previous prime is 478531. The next prime is 478571. The reversal of 478540 is 45874.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 478499 and 478508.

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, 1252 + ... + 1588.

It is an arithmetic number, because the mean of its divisors is an integer number (42588).

2⁴⁷⁸⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

478540 is an abundant number, since it is smaller than the sum of its proper divisors (543572).

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

478540 is a wasteful number, since it uses less digits than its factorization.

478540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 478540 is about 691.7658563416. The cubic root of 478540 is about 78.2178873837.

The spelling of 478540 in words is "four hundred seventy-eight thousand, five hundred forty".