242709719 has 4 divisors (see below), whose sum is σ = 277382544. Its totient is φ = 208036896.

The previous prime is 242709703. The next prime is 242709769. The reversal of 242709719 is 917907242.

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 242709719 - 2⁴ = 242709703 is a prime.

It is a super-2 number, since 2×242709719² = 117816015394117922, 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 (242709769) 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 3 ways as a sum of consecutive naturals, for example, 17336402 + ... + 17336415.

It is an arithmetic number, because the mean of its divisors is an integer number (69345636).

Almost surely, 2^242709719 is an apocalyptic number.

242709719 is a deficient number, since it is larger than the sum of its proper divisors (34672825).

242709719 is an equidigital number, since it uses as much as digits as its factorization.

242709719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34672824.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 242709719 is about 15579.1437184461. The cubic root of 242709719 is about 623.7765669144.

The spelling of 242709719 in words is "two hundred forty-two million, seven hundred nine thousand, seven hundred nineteen".