406604 has 12 divisors (see below), whose sum is σ = 776328. Its totient is φ = 184800.

The previous prime is 406591. The next prime is 406631.

406604 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

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, 4577 + ... + 4664.

It is an arithmetic number, because the mean of its divisors is an integer number (64694).

2⁴⁰⁶⁶⁰⁴ is an apocalyptic number.

406604 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

406604 is a deficient number, since it is larger than the sum of its proper divisors (369724).

406604 is a wasteful number, since it uses less digits than its factorization.

406604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9256 (or 9254 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 406604 is about 637.6550791768. The cubic root of 406604 is about 74.0839077439.

The spelling of 406604 in words is "four hundred six thousand, six hundred four".