242428273 has 2 divisors, whose sum is σ = 242428274. Its totient is φ = 242428272.

The previous prime is 242428261. The next prime is 242428289. The reversal of 242428273 is 372824242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160199649 + 82228624 = 12657^2 + 9068^2 .

It is a cyclic number.

It is not a de Polignac number, because 242428273 - 2⁹ = 242427761 is a prime.

It is not a weakly prime, because it can be changed into another prime (242428673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121214136 + 121214137.

It is an arithmetic number, because the mean of its divisors is an integer number (121214137).

Almost surely, 2^242428273 is an apocalyptic number.

It is an amenable number.

242428273 is a deficient number, since it is larger than the sum of its proper divisors (1).

242428273 is an equidigital number, since it uses as much as digits as its factorization.

242428273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43008, while the sum is 34.

The square root of 242428273 is about 15570.1083169000. The cubic root of 242428273 is about 623.5353633844.

The spelling of 242428273 in words is "two hundred forty-two million, four hundred twenty-eight thousand, two hundred seventy-three".