242680779 has 20 divisors (see below), whose sum is σ = 395481240. Its totient is φ = 147078720.

The previous prime is 242680759. The next prime is 242680783. The reversal of 242680779 is 977086242.

It is not a de Polignac number, because 242680779 - 2⁸ = 242680523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242680759) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 135294 + ... + 137075.

It is an arithmetic number, because the mean of its divisors is an integer number (19774062).

Almost surely, 2^242680779 is an apocalyptic number.

242680779 is a deficient number, since it is larger than the sum of its proper divisors (152800461).

242680779 is a wasteful number, since it uses less digits than its factorization.

242680779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272392 (or 272383 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 242680779 is about 15578.2148848962. The cubic root of 242680779 is about 623.7517734952.

The spelling of 242680779 in words is "two hundred forty-two million, six hundred eighty thousand, seven hundred seventy-nine".