243640233033 has 8 divisors (see below), whose sum is σ = 332408380128. Its totient is φ = 158649453984.

The previous prime is 243640233029. The next prime is 243640233043. The reversal of 243640233033 is 330332046342.

243640233033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 243640233033 - 2² = 243640233029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 243640232985 and 243640233003.

It is not an unprimeable number, because it can be changed into a prime (243640233043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944341860 + ... + 944342117.

It is an arithmetic number, because the mean of its divisors is an integer number (41551047516).

Almost surely, 2^243640233033 is an apocalyptic number.

It is an amenable number.

243640233033 is a deficient number, since it is larger than the sum of its proper divisors (88768147095).

243640233033 is a wasteful number, since it uses less digits than its factorization.

243640233033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888684023.

The product of its (nonzero) digits is 93312, while the sum is 33.

Adding to 243640233033 its reverse (330332046342), we get a palindrome (573972279375).

The spelling of 243640233033 in words is "two hundred forty-three billion, six hundred forty million, two hundred thirty-three thousand, thirty-three".