406027666 has 16 divisors (see below), whose sum is σ = 687320640. Its totient is φ = 178193680.

The previous prime is 406027639. The next prime is 406027667. The reversal of 406027666 is 666720604.

It is not an unprimeable number, because it can be changed into a prime (406027667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317566 + ... + 318841.

It is an arithmetic number, because the mean of its divisors is an integer number (42957540).

Almost surely, 2^406027666 is an apocalyptic number.

406027666 is a deficient number, since it is larger than the sum of its proper divisors (281292974).

406027666 is a wasteful number, since it uses less digits than its factorization.

406027666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636449.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 406027666 is about 20150.1281881779. The cubic root of 406027666 is about 740.4888819642.

The spelling of 406027666 in words is "four hundred six million, twenty-seven thousand, six hundred sixty-six".