242399727 has 18 divisors (see below), whose sum is σ = 358055568. Its totient is φ = 157952592.

The previous prime is 242399723. The next prime is 242399741. The reversal of 242399727 is 727993242.

It is not a de Polignac number, because 242399727 - 2² = 242399723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242399723) 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 17 ways as a sum of consecutive naturals, for example, 319833 + ... + 320589.

It is an arithmetic number, because the mean of its divisors is an integer number (19891976).

Almost surely, 2^242399727 is an apocalyptic number.

242399727 is a deficient number, since it is larger than the sum of its proper divisors (115655841).

242399727 is an frugal number, since it uses more digits than its factorization.

242399727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 807 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 242399727 is about 15569.1915975108. The cubic root of 242399727 is about 623.5108886000.

The spelling of 242399727 in words is "two hundred forty-two million, three hundred ninety-nine thousand, seven hundred twenty-seven".