243333334040 has 64 divisors (see below), whose sum is σ = 549222141600. Its totient is φ = 97027642368.

The previous prime is 243333334037. The next prime is 243333334073. The reversal of 243333334040 is 40433333342.

It is a super-2 number, since 2×243333334040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243333333988 and 243333334006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18459932 + ... + 18473108.

Almost surely, 2^243333334040 is an apocalyptic number.

243333334040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243333334040 is an abundant number, since it is smaller than the sum of its proper divisors (305888807560).

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

243333334040 is a wasteful number, since it uses less digits than its factorization.

243333334040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14604 (or 14600 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 32.

Adding to 243333334040 its reverse (40433333342), we get a palindrome (283766667382).

The spelling of 243333334040 in words is "two hundred forty-three billion, three hundred thirty-three million, three hundred thirty-four thousand, forty".