242816745 has 32 divisors (see below), whose sum is σ = 394180992. Its totient is φ = 127626752.

The previous prime is 242816701. The next prime is 242816747. The reversal of 242816745 is 547618242.

It is a cyclic number.

It is not a de Polignac number, because 242816745 - 2¹⁴ = 242800361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242816747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355174 + ... + 355856.

It is an arithmetic number, because the mean of its divisors is an integer number (12318156).

Almost surely, 2^242816745 is an apocalyptic number.

It is an amenable number.

242816745 is a deficient number, since it is larger than the sum of its proper divisors (151364247).

242816745 is a wasteful number, since it uses less digits than its factorization.

242816745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its digits is 107520, while the sum is 39.

The square root of 242816745 is about 15582.5782526513. The cubic root of 242816745 is about 623.8682408978.

The spelling of 242816745 in words is "two hundred forty-two million, eight hundred sixteen thousand, seven hundred forty-five".