242286217540 has 48 divisors (see below), whose sum is σ = 530045026560. Its totient is φ = 92948145920.

The previous prime is 242286217501. The next prime is 242286217549. The reversal of 242286217540 is 45712682242.

It is a super-2 number, since 2×242286217540² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242286217549) 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, 2455612 + ... + 2552371.

It is an arithmetic number, because the mean of its divisors is an integer number (11042604720).

Almost surely, 2^242286217540 is an apocalyptic number.

242286217540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242286217540 is an abundant number, since it is smaller than the sum of its proper divisors (287758809020).

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

242286217540 is a wasteful number, since it uses less digits than its factorization.

242286217540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008092 (or 5008090 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

Adding to 242286217540 its reverse (45712682242), we get a palindrome (287998899782).

The spelling of 242286217540 in words is "two hundred forty-two billion, two hundred eighty-six million, two hundred seventeen thousand, five hundred forty".