242816783 has 8 divisors (see below), whose sum is σ = 269234256. Its totient is φ = 217123200.

The previous prime is 242816771. The next prime is 242816803. The reversal of 242816783 is 387618242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242816783 - 2⁸ = 242816527 is a prime.

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 242816783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242816983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180266 + ... + 181607.

It is an arithmetic number, because the mean of its divisors is an integer number (33654282).

Almost surely, 2^242816783 is an apocalyptic number.

242816783 is a deficient number, since it is larger than the sum of its proper divisors (26417473).

242816783 is a wasteful number, since it uses less digits than its factorization.

242816783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361945.

The product of its digits is 129024, while the sum is 41.

The square root of 242816783 is about 15582.5794719616. The cubic root of 242816783 is about 623.8682734423.

The spelling of 242816783 in words is "two hundred forty-two million, eight hundred sixteen thousand, seven hundred eighty-three".