242429813 has 2 divisors, whose sum is σ = 242429814. Its totient is φ = 242429812.

The previous prime is 242429773. The next prime is 242429833. The reversal of 242429813 is 318924242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184334929 + 58094884 = 13577^2 + 7622^2 .

It is a cyclic number.

It is not a de Polignac number, because 242429813 - 2¹⁴ = 242413429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242429833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121214906 + 121214907.

It is an arithmetic number, because the mean of its divisors is an integer number (121214907).

Almost surely, 2^242429813 is an apocalyptic number.

It is an amenable number.

242429813 is a deficient number, since it is larger than the sum of its proper divisors (1).

242429813 is an equidigital number, since it uses as much as digits as its factorization.

242429813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 35.

The square root of 242429813 is about 15570.1577705558. The cubic root of 242429813 is about 623.5366836958.

The spelling of 242429813 in words is "two hundred forty-two million, four hundred twenty-nine thousand, eight hundred thirteen".