520374 has 8 divisors (see below), whose sum is σ = 1040760. Its totient is φ = 173456.

The previous prime is 520369. The next prime is 520379. The reversal of 520374 is 473025.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (520369) and next prime (520379).

It is a sphenic number, since it is the product of 3 distinct primes.

520374 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 520374.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520379) by changing a digit.

520374 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 3 ways as a sum of consecutive naturals, for example, 43359 + ... + 43370.

It is an arithmetic number, because the mean of its divisors is an integer number (130095).

2⁵²⁰³⁷⁴ is an apocalyptic number.

520374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520374 is a wasteful number, since it uses less digits than its factorization.

520374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86734.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 520374 is about 721.3695308231. The cubic root of 520374 is about 80.4337894162.

Adding to 520374 its reverse (473025), we get a palindrome (993399).

The spelling of 520374 in words is "five hundred twenty thousand, three hundred seventy-four".