242912729 has 8 divisors (see below), whose sum is σ = 262215360. Its totient is φ = 224338576.

The previous prime is 242912723. The next prime is 242912731. The reversal of 242912729 is 927219242.

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-242912729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242912692 and 242912701.

It is not an unprimeable number, because it can be changed into a prime (242912723) 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, 181427 + ... + 182760.

It is an arithmetic number, because the mean of its divisors is an integer number (32776920).

Almost surely, 2^242912729 is an apocalyptic number.

242912729 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

242912729 is a deficient number, since it is larger than the sum of its proper divisors (19302631).

242912729 is a wasteful number, since it uses less digits than its factorization.

242912729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364239.

The product of its digits is 36288, while the sum is 38.

The square root of 242912729 is about 15585.6577981168. The cubic root of 242912729 is about 623.9504338574.

The spelling of 242912729 in words is "two hundred forty-two million, nine hundred twelve thousand, seven hundred twenty-nine".