242988879 has 16 divisors (see below), whose sum is σ = 380277248. Its totient is φ = 135097632.

The previous prime is 242988847. The next prime is 242988899. The reversal of 242988879 is 978889242.

It is not a de Polignac number, because 242988879 - 2⁵ = 242988847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242988839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155587 + ... + 157140.

It is an arithmetic number, because the mean of its divisors is an integer number (23767328).

Almost surely, 2^242988879 is an apocalyptic number.

242988879 is a deficient number, since it is larger than the sum of its proper divisors (137288369).

242988879 is a wasteful number, since it uses less digits than its factorization.

242988879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312774.

The product of its digits is 4644864, while the sum is 57.

The square root of 242988879 is about 15588.1005577973. The cubic root of 242988879 is about 624.0156271768.

It can be divided in two parts, 242 and 988879, that added together give a triangular number (989121 = T₁₄₀₆).

The spelling of 242988879 in words is "two hundred forty-two million, nine hundred eighty-eight thousand, eight hundred seventy-nine".