242078045 has 24 divisors (see below), whose sum is σ = 338099832. Its totient is φ = 165693440.

The previous prime is 242078033. The next prime is 242078071. The reversal of 242078045 is 540870242.

It can be written as a sum of positive squares in 4 ways, for example, as 33477796 + 208600249 = 5786^2 + 14443^2 .

It is not a de Polignac number, because 242078045 - 2⁴ = 242078029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1484 + ... + 22053.

It is an arithmetic number, because the mean of its divisors is an integer number (14087493).

Almost surely, 2^242078045 is an apocalyptic number.

It is an amenable number.

242078045 is a deficient number, since it is larger than the sum of its proper divisors (96021787).

242078045 is a wasteful number, since it uses less digits than its factorization.

242078045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23581 (or 23570 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 242078045 is about 15558.8574451982. The cubic root of 242078045 is about 623.2349517934.

The spelling of 242078045 in words is "two hundred forty-two million, seventy-eight thousand, forty-five".