242609321 has 8 divisors (see below), whose sum is σ = 244073088. Its totient is φ = 241150000.

The previous prime is 242609291. The next prime is 242609371. The reversal of 242609321 is 123906242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242609321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242609371) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 228131 + ... + 229191.

It is an arithmetic number, because the mean of its divisors is an integer number (30509136).

Almost surely, 2^242609321 is an apocalyptic number.

It is an amenable number.

242609321 is a deficient number, since it is larger than the sum of its proper divisors (1463767).

242609321 is a wasteful number, since it uses less digits than its factorization.

242609321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 242609321 is about 15575.9211926614. The cubic root of 242609321 is about 623.6905456964.

The spelling of 242609321 in words is "two hundred forty-two million, six hundred nine thousand, three hundred twenty-one".