520478 has 24 divisors (see below), whose sum is σ = 935712. Its totient is φ = 216384.

The previous prime is 520451. The next prime is 520529. The reversal of 520478 is 874025.

It is a congruent number.

It is an unprimeable number.

520478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4550 + ... + 4662.

It is an arithmetic number, because the mean of its divisors is an integer number (38988).

2⁵²⁰⁴⁷⁸ is an apocalyptic number.

520478 is a deficient number, since it is larger than the sum of its proper divisors (415234).

520478 is a wasteful number, since it uses less digits than its factorization.

520478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 520478 is about 721.4416123291. The cubic root of 520478 is about 80.4391474579.

The spelling of 520478 in words is "five hundred twenty thousand, four hundred seventy-eight".