473642666 has 8 divisors (see below), whose sum is σ = 811958880. Its totient is φ = 202989708.

The previous prime is 473642623. The next prime is 473642677. The reversal of 473642666 is 666246374.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16915796 + ... + 16915823.

It is an arithmetic number, because the mean of its divisors is an integer number (101494860).

Almost surely, 2^473642666 is an apocalyptic number.

473642666 is a deficient number, since it is larger than the sum of its proper divisors (338316214).

473642666 is a wasteful number, since it uses less digits than its factorization.

473642666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33831628.

The product of its digits is 870912, while the sum is 44.

The square root of 473642666 is about 21763.3330627457. Note that the first 3 decimals coincide. The cubic root of 473642666 is about 779.5014708309.

The spelling of 473642666 in words is "four hundred seventy-three million, six hundred forty-two thousand, six hundred sixty-six".