505394 has 8 divisors (see below), whose sum is σ = 771120. Its totient is φ = 248356.

The previous prime is 505369. The next prime is 505399. The reversal of 505394 is 493505.

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

It is not an unprimeable number, because it can be changed into a prime (505399) 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 3 ways as a sum of consecutive naturals, for example, 2024 + ... + 2259.

It is an arithmetic number, because the mean of its divisors is an integer number (96390).

2⁵⁰⁵³⁹⁴ is an apocalyptic number.

505394 is a deficient number, since it is larger than the sum of its proper divisors (265726).

505394 is a wasteful number, since it uses less digits than its factorization.

505394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 505394 is about 710.9106835602. The cubic root of 505394 is about 79.6544470636.

Adding to 505394 its reverse (493505), we get a palindrome (998899).

The spelling of 505394 in words is "five hundred five thousand, three hundred ninety-four".