242746865 has 8 divisors (see below), whose sum is σ = 294299880. Its totient is φ = 192195072.

The previous prime is 242746843. The next prime is 242746891. The reversal of 242746865 is 568647242.

242746865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4631104 + 238115761 = 2152^2 + 15431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242746865 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249770 + ... + 250739.

It is an arithmetic number, because the mean of its divisors is an integer number (36787485).

Almost surely, 2^242746865 is an apocalyptic number.

It is an amenable number.

242746865 is a deficient number, since it is larger than the sum of its proper divisors (51553015).

242746865 is an equidigital number, since it uses as much as digits as its factorization.

242746865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500611.

The product of its digits is 645120, while the sum is 44.

The square root of 242746865 is about 15580.3358436203. The cubic root of 242746865 is about 623.8083876733.

The spelling of 242746865 in words is "two hundred forty-two million, seven hundred forty-six thousand, eight hundred sixty-five".