242820833 has 2 divisors, whose sum is σ = 242820834. Its totient is φ = 242820832.

The previous prime is 242820803. The next prime is 242820881. The reversal of 242820833 is 338028242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153933649 + 88887184 = 12407^2 + 9428^2 .

It is a cyclic number.

It is not a de Polignac number, because 242820833 - 2¹⁶ = 242755297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242820833.

It is not a weakly prime, because it can be changed into another prime (242820803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121410416 + 121410417.

It is an arithmetic number, because the mean of its divisors is an integer number (121410417).

Almost surely, 2^242820833 is an apocalyptic number.

It is an amenable number.

242820833 is a deficient number, since it is larger than the sum of its proper divisors (1).

242820833 is an equidigital number, since it uses as much as digits as its factorization.

242820833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 242820833 is about 15582.7094242304. The cubic root of 242820833 is about 623.8717419730.

The spelling of 242820833 in words is "two hundred forty-two million, eight hundred twenty thousand, eight hundred thirty-three".