406606 has 8 divisors (see below), whose sum is σ = 645840. Its totient is φ = 191328.

The previous prime is 406591. The next prime is 406631. The reversal of 406606 is 606604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5946 + ... + 6013.

It is an arithmetic number, because the mean of its divisors is an integer number (80730).

2⁴⁰⁶⁶⁰⁶ is an apocalyptic number.

406606 is a deficient number, since it is larger than the sum of its proper divisors (239234).

406606 is a wasteful number, since it uses less digits than its factorization.

406606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11978.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 406606 is about 637.6566474209. The cubic root of 406606 is about 74.0840292114.

The spelling of 406606 in words is "four hundred six thousand, six hundred six".