405006 has 16 divisors (see below), whose sum is σ = 925824. Its totient is φ = 115704.

The previous prime is 405001. The next prime is 405011. The reversal of 405006 is 600504.

It is an interprime number because it is at equal distance from previous prime (405001) and next prime (405011).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405001) 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, 4780 + ... + 4863.

It is an arithmetic number, because the mean of its divisors is an integer number (57864).

2⁴⁰⁵⁰⁰⁶ is an apocalyptic number.

405006 is an abundant number, since it is smaller than the sum of its proper divisors (520818).

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

405006 is a wasteful number, since it uses less digits than its factorization.

405006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 405006 is about 636.4008170956. The cubic root of 405006 is about 73.9867275929.

The spelling of 405006 in words is "four hundred five thousand, six".