242384657 has 8 divisors (see below), whose sum is σ = 256863816. Its totient is φ = 227930112.

The previous prime is 242384641. The next prime is 242384671. The reversal of 242384657 is 756483242.

It can be written as a sum of positive squares in 4 ways, for example, as 106172416 + 136212241 = 10304^2 + 11671^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 242384657 - 2⁴ = 242384641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242384617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16553 + ... + 27545.

It is an arithmetic number, because the mean of its divisors is an integer number (32107977).

Almost surely, 2^242384657 is an apocalyptic number.

It is an amenable number.

242384657 is a deficient number, since it is larger than the sum of its proper divisors (14479159).

242384657 is a wasteful number, since it uses less digits than its factorization.

242384657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12307.

The product of its digits is 322560, while the sum is 41.

The square root of 242384657 is about 15568.7076213795. The cubic root of 242384657 is about 623.4979671005.

The spelling of 242384657 in words is "two hundred forty-two million, three hundred eighty-four thousand, six hundred fifty-seven".