242509066 has 8 divisors (see below), whose sum is σ = 368746884. Its totient is φ = 119593440.

The previous prime is 242509037. The next prime is 242509073. The reversal of 242509066 is 660905242.

It can be written as a sum of positive squares in 2 ways, for example, as 212314041 + 30195025 = 14571^2 + 5495^2 .

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830365 + ... + 830656.

Almost surely, 2^242509066 is an apocalyptic number.

242509066 is a deficient number, since it is larger than the sum of its proper divisors (126237818).

242509066 is a wasteful number, since it uses less digits than its factorization.

242509066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661096.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 242509066 is about 15572.7025913937. The cubic root of 242509066 is about 623.6046233167.

The spelling of 242509066 in words is "two hundred forty-two million, five hundred nine thousand, sixty-six".