406518 has 16 divisors (see below), whose sum is σ = 929280. Its totient is φ = 116136.

The previous prime is 406517. The next prime is 406531. The reversal of 406518 is 815604.

406518 is a modest number, since divided by 518 gives 406 as remainder.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 4881.

It is an arithmetic number, because the mean of its divisors is an integer number (58080).

2⁴⁰⁶⁵¹⁸ is an apocalyptic number.

406518 is an abundant number, since it is smaller than the sum of its proper divisors (522762).

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

406518 is a wasteful number, since it uses less digits than its factorization.

406518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9691.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 406518 is about 637.5876410345. The cubic root of 406518 is about 74.0786842624.

The spelling of 406518 in words is "four hundred six thousand, five hundred eighteen".