520738 has 16 divisors (see below), whose sum is σ = 831744. Its totient is φ = 244080.

The previous prime is 520721. The next prime is 520747. The reversal of 520738 is 837025.

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, 2181 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (51984).

2⁵²⁰⁷³⁸ is an apocalyptic number.

520738 is a deficient number, since it is larger than the sum of its proper divisors (311006).

520738 is a wasteful number, since it uses less digits than its factorization.

520738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 520738 is about 721.6217845936. The cubic root of 520738 is about 80.4525394405.

The spelling of 520738 in words is "five hundred twenty thousand, seven hundred thirty-eight".