505416 has 16 divisors (see below), whose sum is σ = 1263600. Its totient is φ = 168464.

The previous prime is 505411. The next prime is 505429. The reversal of 505416 is 614505.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 505392 and 505401.

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

505416 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, 10506 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (78975).

2⁵⁰⁵⁴¹⁶ is an apocalyptic number.

It is an amenable number.

505416 is an abundant number, since it is smaller than the sum of its proper divisors (758184).

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

505416 is a wasteful number, since it uses less digits than its factorization.

505416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21068 (or 21064 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 505416 is about 710.9261565029. The cubic root of 505416 is about 79.6556028434.

The spelling of 505416 in words is "five hundred five thousand, four hundred sixteen".