242259506738 has 54 divisors (see below), whose sum is σ = 382681097757. Its totient is φ = 115019267760.

The previous prime is 242259506701. The next prime is 242259506747. The reversal of 242259506738 is 837605952242.

It can be written as a sum of positive squares in 2 ways, for example, as 232461872449 + 9797634289 = 482143^2 + 98983^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=348037.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242259506738.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2222564228 + ... + 2222564336.

Almost surely, 2^242259506738 is an apocalyptic number.

242259506738 is a deficient number, since it is larger than the sum of its proper divisors (140421591019).

242259506738 is an equidigital number, since it uses as much as digits as its factorization.

242259506738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 242259506738 in words is "two hundred forty-two billion, two hundred fifty-nine million, five hundred six thousand, seven hundred thirty-eight".