606660242 has 4 divisors (see below), whose sum is σ = 909990366. Its totient is φ = 303330120.

The previous prime is 606660239. The next prime is 606660289. The reversal of 606660242 is 242066606.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242066606 = 2 ⋅121033303.

It can be written as a sum of positive squares in only one way, i.e., 512977201 + 93683041 = 22649^2 + 9679^2 .

It is a junction number, because it is equal to n+sod(n) for n = 606660199 and 606660208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151665059 + ... + 151665062.

Almost surely, 2^606660242 is an apocalyptic number.

606660242 is a deficient number, since it is larger than the sum of its proper divisors (303330124).

606660242 is a wasteful number, since it uses less digits than its factorization.

606660242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303330123.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 606660242 is about 24630.4738484667. The cubic root of 606660242 is about 846.5420028149.

The spelling of 606660242 in words is "six hundred six million, six hundred sixty thousand, two hundred forty-two".