668630282 has 8 divisors (see below), whose sum is σ = 1003211616. Its totient is φ = 334226412.

The previous prime is 668630279. The next prime is 668630299. The reversal of 668630282 is 282036866.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34508 + ... + 50279.

It is an arithmetic number, because the mean of its divisors is an integer number (125401452).

Almost surely, 2^668630282 is an apocalyptic number.

668630282 is a deficient number, since it is larger than the sum of its proper divisors (334581334).

668630282 is a wasteful number, since it uses less digits than its factorization.

668630282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88732.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 668630282 is about 25857.8862631886. The cubic root of 668630282 is about 874.4373120246.

The spelling of 668630282 in words is "six hundred sixty-eight million, six hundred thirty thousand, two hundred eighty-two".