406508 has 6 divisors (see below), whose sum is σ = 711396. Its totient is φ = 203252.

The previous prime is 406507. The next prime is 406513. The reversal of 406508 is 805604.

It is not an unprimeable number, because it can be changed into a prime (406501) 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 as a sum of consecutive naturals, namely, 50810 + ... + 50817.

It is an arithmetic number, because the mean of its divisors is an integer number (118566).

2⁴⁰⁶⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

406508 is a deficient number, since it is larger than the sum of its proper divisors (304888).

406508 is a wasteful number, since it uses less digits than its factorization.

406508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101631 (or 101629 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 406508 is about 637.5797989272. The cubic root of 406508 is about 74.0780768331.

The spelling of 406508 in words is "four hundred six thousand, five hundred eight".