474481666 has 8 divisors (see below), whose sum is σ = 714777804. Its totient is φ = 236222400.

The previous prime is 474481649. The next prime is 474481669. The reversal of 474481666 is 666184474.

It can be written as a sum of positive squares in 2 ways, for example, as 381069441 + 93412225 = 19521^2 + 9665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (474481669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508635 + ... + 509566.

Almost surely, 2^474481666 is an apocalyptic number.

474481666 is a deficient number, since it is larger than the sum of its proper divisors (240296138).

474481666 is a wasteful number, since it uses less digits than its factorization.

474481666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018436.

The product of its digits is 774144, while the sum is 46.

The square root of 474481666 is about 21782.6000743713. The cubic root of 474481666 is about 779.9614631410.

The spelling of 474481666 in words is "four hundred seventy-four million, four hundred eighty-one thousand, six hundred sixty-six".