406200666 has 16 divisors (see below), whose sum is σ = 812774304. Its totient is φ = 135338064.

The previous prime is 406200643. The next prime is 406200701. The reversal of 406200666 is 666002604.

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, 220 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (50798394).

Almost surely, 2^406200666 is an apocalyptic number.

406200666 is an abundant number, since it is smaller than the sum of its proper divisors (406573638).

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

406200666 is a wasteful number, since it uses less digits than its factorization.

406200666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31085.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 406200666 is about 20154.4205076703. The cubic root of 406200666 is about 740.5940360357.

The spelling of 406200666 in words is "four hundred six million, two hundred thousand, six hundred sixty-six".