242978013184 has 45 divisors (see below), whose sum is σ = 486067414651. Its totient is φ = 121457459200.

The previous prime is 242978013181. The next prime is 242978013193. The reversal of 242978013184 is 481310879242.

The square root of 242978013184 is 492928.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242978013181) 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, 63092859 + ... + 63096709.

Almost surely, 2^242978013184 is an apocalyptic number.

242978013184 is the 492928-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242978013184

242978013184 is an abundant number, since it is smaller than the sum of its proper divisors (243089401467).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242978013184 is an frugal number, since it uses more digits than its factorization.

242978013184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

Multiplying 242978013184 by its sum of digits (49), we get a square (11905922646016 = 3450496²).

The spelling of 242978013184 in words is "two hundred forty-two billion, nine hundred seventy-eight million, thirteen thousand, one hundred eighty-four".