242502779 has 2 divisors, whose sum is σ = 242502780. Its totient is φ = 242502778.

The previous prime is 242502749. The next prime is 242502791. The reversal of 242502779 is 977205242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242502779 - 2¹⁶ = 242437243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242502749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121251389 + 121251390.

It is an arithmetic number, because the mean of its divisors is an integer number (121251390).

Almost surely, 2^242502779 is an apocalyptic number.

242502779 is a deficient number, since it is larger than the sum of its proper divisors (1).

242502779 is an equidigital number, since it uses as much as digits as its factorization.

242502779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 242502779 is about 15572.5007304543. The cubic root of 242502779 is about 623.5992343276.

The spelling of 242502779 in words is "two hundred forty-two million, five hundred two thousand, seven hundred seventy-nine".