408000666 has 16 divisors (see below), whose sum is σ = 816984000. Its totient is φ = 135836448.

The previous prime is 408000647. The next prime is 408000673. The reversal of 408000666 is 666000804.

It is a happy number.

408000666 is a modest number, since divided by 666 gives 408 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35491 + ... + 45558.

It is an arithmetic number, because the mean of its divisors is an integer number (51061500).

Almost surely, 2^408000666 is an apocalyptic number.

408000666 is an abundant number, since it is smaller than the sum of its proper divisors (408983334).

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

408000666 is a wasteful number, since it uses less digits than its factorization.

408000666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81893.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 408000666 is about 20199.0263626740. The cubic root of 408000666 is about 741.6863574174.

The spelling of 408000666 in words is "four hundred eight million, six hundred sixty-six", and thus it is an aban number.