242709723 has 16 divisors (see below), whose sum is σ = 359857440. Its totient is φ = 161677152.

The previous prime is 242709703. The next prime is 242709769. The reversal of 242709723 is 327907242.

It is not a de Polignac number, because 242709723 - 2¹⁰ = 242708699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242709703) 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, 40765 + ... + 46337.

It is an arithmetic number, because the mean of its divisors is an integer number (22491090).

Almost surely, 2^242709723 is an apocalyptic number.

242709723 is a deficient number, since it is larger than the sum of its proper divisors (117147717).

242709723 is a wasteful number, since it uses less digits than its factorization.

242709723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7195 (or 7189 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 242709723 is about 15579.1438468229. The cubic root of 242709723 is about 623.7765703411.

The spelling of 242709723 in words is "two hundred forty-two million, seven hundred nine thousand, seven hundred twenty-three".