520366 has 32 divisors (see below), whose sum is σ = 1013760. Its totient is φ = 194400.

The previous prime is 520363. The next prime is 520369. The reversal of 520366 is 663025.

It is an interprime number because it is at equal distance from previous prime (520363) and next prime (520369).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4720 + ... + 4828.

It is an arithmetic number, because the mean of its divisors is an integer number (31680).

2⁵²⁰³⁶⁶ is an apocalyptic number.

520366 is a deficient number, since it is larger than the sum of its proper divisors (493394).

520366 is a wasteful number, since it uses less digits than its factorization.

520366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 520366 is about 721.3639857936. The cubic root of 520366 is about 80.4333772295.

520366 divided by its sum of digits (22) gives a triangular number (23653 = T₂₁₇).

The spelling of 520366 in words is "five hundred twenty thousand, three hundred sixty-six".