242857880 has 16 divisors (see below), whose sum is σ = 546430320. Its totient is φ = 97143136.

The previous prime is 242857831. The next prime is 242857891. The reversal of 242857880 is 88758242.

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 3 ways as a sum of consecutive naturals, for example, 3035684 + ... + 3035763.

It is an arithmetic number, because the mean of its divisors is an integer number (34151895).

Almost surely, 2^242857880 is an apocalyptic number.

242857880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242857880 is an abundant number, since it is smaller than the sum of its proper divisors (303572440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242857880 is a wasteful number, since it uses less digits than its factorization.

242857880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071458 (or 6071454 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 44.

The square root of 242857880 is about 15583.8981002829. The cubic root of 242857880 is about 623.9034682474.

The spelling of 242857880 in words is "two hundred forty-two million, eight hundred fifty-seven thousand, eight hundred eighty".