506394 has 24 divisors (see below), whose sum is σ = 1254240. Its totient is φ = 144648.

The previous prime is 506393. The next prime is 506417. The reversal of 506394 is 493605.

It is a happy number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 506394.

It is not an unprimeable number, because it can be changed into a prime (506393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1884 + ... + 2135.

It is an arithmetic number, because the mean of its divisors is an integer number (52260).

2⁵⁰⁶³⁹⁴ is an apocalyptic number.

506394 is an abundant number, since it is smaller than the sum of its proper divisors (747846).

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

506394 is a wasteful number, since it uses less digits than its factorization.

506394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034 (or 4031 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 506394 is about 711.6136592281. The cubic root of 506394 is about 79.7069486555.

Adding to 506394 its reverse (493605), we get a palindrome (999999).

It can be divided in two parts, 506 and 394, that added together give a square (900 = 30²).

The spelling of 506394 in words is "five hundred six thousand, three hundred ninety-four".