242740069 has 16 divisors (see below), whose sum is σ = 285687360. Its totient is φ = 203333760.

The previous prime is 242740019. The next prime is 242740073. The reversal of 242740069 is 960047242.

It is a cyclic number.

It is not a de Polignac number, because 242740069 - 2⁷ = 242739941 is a prime.

It is a super-2 number, since 2×242740069² = 117845482196249522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242740019) 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 15 ways as a sum of consecutive naturals, for example, 104529 + ... + 106825.

It is an arithmetic number, because the mean of its divisors is an integer number (17855460).

Almost surely, 2^242740069 is an apocalyptic number.

It is an amenable number.

242740069 is a deficient number, since it is larger than the sum of its proper divisors (42947291).

242740069 is a wasteful number, since it uses less digits than its factorization.

242740069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 242740069 is about 15580.1177466667. The cubic root of 242740069 is about 623.8025661887.

The spelling of 242740069 in words is "two hundred forty-two million, seven hundred forty thousand, sixty-nine".