242760187849 has 3 divisors (see below), whose sum is σ = 242760680557. Its totient is φ = 242759695142.

The previous prime is 242760187847. The next prime is 242760187931. The reversal of 242760187849 is 948781067242.

The square root of 242760187849 is 492707.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 242760187849 - 2¹ = 242760187847 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242760187793 and 242760187802.

It is not an unprimeable number, because it can be changed into a prime (242760187843) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 246354 + ... + 739060.

Almost surely, 2^242760187849 is an apocalyptic number.

242760187849 is the 492707-th square number.

242760187849 is the 246354-th centered octagonal number.

It is an amenable number.

242760187849 is a deficient number, since it is larger than the sum of its proper divisors (492708).

242760187849 is an frugal number, since it uses more digits than its factorization.

242760187849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985414 (or 492707 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 242760187849 in words is "two hundred forty-two billion, seven hundred sixty million, one hundred eighty-seven thousand, eight hundred forty-nine".