242480247 has 8 divisors (see below), whose sum is σ = 329407344. Its totient is φ = 158603328.

The previous prime is 242480243. The next prime is 242480263. The reversal of 242480247 is 742084242.

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

It is not a de Polignac number, because 242480247 - 2² = 242480243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242480243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 762358 + ... + 762675.

It is an arithmetic number, because the mean of its divisors is an integer number (41175918).

Almost surely, 2^242480247 is an apocalyptic number.

242480247 is a deficient number, since it is larger than the sum of its proper divisors (86927097).

242480247 is a wasteful number, since it uses less digits than its factorization.

242480247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525089.

The product of its (nonzero) digits is 28672, while the sum is 33.

The square root of 242480247 is about 15571.7772588745. Note that the first 3 decimals coincide. The cubic root of 242480247 is about 623.5799199466.

The spelling of 242480247 in words is "two hundred forty-two million, four hundred eighty thousand, two hundred forty-seven".