243684122 has 8 divisors (see below), whose sum is σ = 398755872. Its totient is φ = 110765500.

The previous prime is 243684121. The next prime is 243684131. The reversal of 243684122 is 221486342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (243684121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5538254 + ... + 5538297.

It is an arithmetic number, because the mean of its divisors is an integer number (49844484).

Almost surely, 2^243684122 is an apocalyptic number.

243684122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

243684122 is a deficient number, since it is larger than the sum of its proper divisors (155071750).

243684122 is a wasteful number, since it uses less digits than its factorization.

243684122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076564.

The product of its digits is 18432, while the sum is 32.

The square root of 243684122 is about 15610.3850689213. The cubic root of 243684122 is about 624.6102077230.

The spelling of 243684122 in words is "two hundred forty-three million, six hundred eighty-four thousand, one hundred twenty-two".