242474737 has 2 divisors, whose sum is σ = 242474738. Its totient is φ = 242474736.

The previous prime is 242474731. The next prime is 242474741. The reversal of 242474737 is 737474242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219010401 + 23464336 = 14799^2 + 4844^2 .

It is a cyclic number.

It is not a de Polignac number, because 242474737 - 2¹¹ = 242472689 is a prime.

It is equal to p_13289764 and since 242474737 and 13289764 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242474737.

It is not a weakly prime, because it can be changed into another prime (242474731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121237368 + 121237369.

It is an arithmetic number, because the mean of its divisors is an integer number (121237369).

Almost surely, 2^242474737 is an apocalyptic number.

It is an amenable number.

242474737 is a deficient number, since it is larger than the sum of its proper divisors (1).

242474737 is an equidigital number, since it uses as much as digits as its factorization.

242474737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424, while the sum is 40.

The square root of 242474737 is about 15571.6003352257. The cubic root of 242474737 is about 623.5751966047.

The spelling of 242474737 in words is "two hundred forty-two million, four hundred seventy-four thousand, seven hundred thirty-seven".