660326242 has 8 divisors (see below), whose sum is σ = 990759276. Its totient is φ = 330073152.

The previous prime is 660326237. The next prime is 660326269. The reversal of 660326242 is 242623066.

It can be written as a sum of positive squares in 2 ways, for example, as 493683961 + 166642281 = 22219^2 + 12909^2 .

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, 35403 + ... + 50734.

Almost surely, 2^660326242 is an apocalyptic number.

660326242 is a deficient number, since it is larger than the sum of its proper divisors (330433034).

660326242 is a wasteful number, since it uses less digits than its factorization.

660326242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89972.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 660326242 is about 25696.8138491915. The cubic root of 660326242 is about 870.8022027887.

The spelling of 660326242 in words is "six hundred sixty million, three hundred twenty-six thousand, two hundred forty-two".