242399629 has 2 divisors, whose sum is σ = 242399630. Its totient is φ = 242399628.

The previous prime is 242399627. The next prime is 242399669. The reversal of 242399629 is 926993242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181980100 + 60419529 = 13490^2 + 7773^2 .

It is a cyclic number.

It is not a de Polignac number, because 242399629 - 2¹ = 242399627 is a prime.

Together with 242399627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242399621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121199814 + 121199815.

It is an arithmetic number, because the mean of its divisors is an integer number (121199815).

Almost surely, 2^242399629 is an apocalyptic number.

It is an amenable number.

242399629 is a deficient number, since it is larger than the sum of its proper divisors (1).

242399629 is an equidigital number, since it uses as much as digits as its factorization.

242399629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 46.

The square root of 242399629 is about 15569.1884502693. The cubic root of 242399629 is about 623.5108045734.

The spelling of 242399629 in words is "two hundred forty-two million, three hundred ninety-nine thousand, six hundred twenty-nine".