284480666 has 8 divisors (see below), whose sum is σ = 426792564. Its totient is φ = 142216480.

The previous prime is 284480657. The next prime is 284480683. The reversal of 284480666 is 666084482.

It can be written as a sum of positive squares in 2 ways, for example, as 284428225 + 52441 = 16865^2 + 229^2 .

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, 17606 + ... + 29646.

Almost surely, 2^284480666 is an apocalyptic number.

284480666 is a deficient number, since it is larger than the sum of its proper divisors (142311898).

284480666 is a wasteful number, since it uses less digits than its factorization.

284480666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23856.

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 284480666 is about 16866.5546570721. The cubic root of 284480666 is about 657.6844676067.

The spelling of 284480666 in words is "two hundred eighty-four million, four hundred eighty thousand, six hundred sixty-six".