242859340 has 96 divisors (see below), whose sum is σ = 551577600. Its totient is φ = 89644800.

The previous prime is 242859329. The next prime is 242859341. The reversal of 242859340 is 43958242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 242859340.

It is not an unprimeable number, because it can be changed into a prime (242859341) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1608265 + ... + 1608415.

It is an arithmetic number, because the mean of its divisors is an integer number (5745600).

Almost surely, 2^242859340 is an apocalyptic number.

242859340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242859340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275788800).

242859340 is an abundant number, since it is smaller than the sum of its proper divisors (308718260).

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

242859340 is a wasteful number, since it uses less digits than its factorization.

242859340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 242859340 is about 15583.9449434346. The cubic root of 242859340 is about 623.9047184947.

The spelling of 242859340 in words is "two hundred forty-two million, eight hundred fifty-nine thousand, three hundred forty".