242745727 has 4 divisors (see below), whose sum is σ = 277423696. Its totient is φ = 208067760.

The previous prime is 242745719. The next prime is 242745731. The reversal of 242745727 is 727547242.

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 242745727 - 2³ = 242745719 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242745727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242745127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17338974 + ... + 17338987.

It is an arithmetic number, because the mean of its divisors is an integer number (69355924).

Almost surely, 2^242745727 is an apocalyptic number.

242745727 is a deficient number, since it is larger than the sum of its proper divisors (34677969).

242745727 is an equidigital number, since it uses as much as digits as its factorization.

242745727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34677968.

The product of its digits is 219520, while the sum is 40.

The square root of 242745727 is about 15580.2993231837. The cubic root of 242745727 is about 623.8074128649.

The spelling of 242745727 in words is "two hundred forty-two million, seven hundred forty-five thousand, seven hundred twenty-seven".