406602666 has 32 divisors (see below), whose sum is σ = 914726400. Its totient is φ = 135532764.

The previous prime is 406602653. The next prime is 406602733. The reversal of 406602666 is 666206604.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 406602666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42106 + ... + 50853.

It is an arithmetic number, because the mean of its divisors is an integer number (28585200).

Almost surely, 2^406602666 is an apocalyptic number.

406602666 is an abundant number, since it is smaller than the sum of its proper divisors (508123734).

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

406602666 is an frugal number, since it uses more digits than its factorization.

406602666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92982 (or 92964 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 406602666 is about 20164.3910396521. The cubic root of 406602666 is about 740.8382672478.

The spelling of 406602666 in words is "four hundred six million, six hundred two thousand, six hundred sixty-six".