662740306 has 8 divisors (see below), whose sum is σ = 1028390220. Its totient is φ = 319943568.

The previous prime is 662740303. The next prime is 662740321. The reversal of 662740306 is 603047266.

It can be written as a sum of positive squares in 2 ways, for example, as 612117081 + 50623225 = 24741^2 + 7115^2 .

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 (662740303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5713221 + ... + 5713336.

Almost surely, 2^662740306 is an apocalyptic number.

662740306 is a deficient number, since it is larger than the sum of its proper divisors (365649914).

662740306 is a wasteful number, since it uses less digits than its factorization.

662740306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11426588.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 662740306 is about 25743.7430456412. The cubic root of 662740306 is about 871.8620908423.

The spelling of 662740306 in words is "six hundred sixty-two million, seven hundred forty thousand, three hundred six".