242830540 has 12 divisors (see below), whose sum is σ = 509944176. Its totient is φ = 97132208.

The previous prime is 242830531. The next prime is 242830541. The reversal of 242830540 is 45038242.

It is a junction number, because it is equal to n+sod(n) for n = 242830499 and 242830508.

It is not an unprimeable number, because it can be changed into a prime (242830541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6070744 + ... + 6070783.

It is an arithmetic number, because the mean of its divisors is an integer number (42495348).

Almost surely, 2^242830540 is an apocalyptic number.

242830540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242830540 is an abundant number, since it is smaller than the sum of its proper divisors (267113636).

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

242830540 is a wasteful number, since it uses less digits than its factorization.

242830540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12141536 (or 12141534 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 242830540 is about 15583.0208881333. The cubic root of 242830540 is about 623.8800551564.

Adding to 242830540 its reverse (45038242), we get a palindrome (287868782).

The spelling of 242830540 in words is "two hundred forty-two million, eight hundred thirty thousand, five hundred forty".