505412 has 12 divisors (see below), whose sum is σ = 915180. Its totient is φ = 243936.

The previous prime is 505411. The next prime is 505429. The reversal of 505412 is 214505.

It can be written as a sum of positive squares in 2 ways, for example, as 430336 + 75076 = 656^2 + 274^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (505411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063 + ... + 2294.

It is an arithmetic number, because the mean of its divisors is an integer number (76265).

2⁵⁰⁵⁴¹² is an apocalyptic number.

It is an amenable number.

505412 is a deficient number, since it is larger than the sum of its proper divisors (409768).

505412 is a wasteful number, since it uses less digits than its factorization.

505412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390 (or 4388 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 505412 is about 710.9233432656. The cubic root of 505412 is about 79.6553927041.

Adding to 505412 its reverse (214505), we get a palindrome (719917).

The spelling of 505412 in words is "five hundred five thousand, four hundred twelve".