242667739 has 4 divisors (see below), whose sum is σ = 242832856. Its totient is φ = 242502624.

The previous prime is 242667731. The next prime is 242667743. The reversal of 242667739 is 937766242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242667739 - 2³ = 242667731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242667731) 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 3 ways as a sum of consecutive naturals, for example, 80334 + ... + 83299.

It is an arithmetic number, because the mean of its divisors is an integer number (60708214).

Almost surely, 2^242667739 is an apocalyptic number.

242667739 is a deficient number, since it is larger than the sum of its proper divisors (165117).

242667739 is a wasteful number, since it uses less digits than its factorization.

242667739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165116.

The product of its digits is 762048, while the sum is 46.

The square root of 242667739 is about 15577.7963460818. The cubic root of 242667739 is about 623.7406012482.

The spelling of 242667739 in words is "two hundred forty-two million, six hundred sixty-seven thousand, seven hundred thirty-nine".