243114403240 has 64 divisors (see below), whose sum is σ = 548843668560. Its totient is φ = 96919879680.

The previous prime is 243114403237. The next prime is 243114403247. The reversal of 243114403240 is 42304411342.

It can be written as a sum of positive squares in 8 ways, for example, as 242030545156 + 1083858084 = 491966^2 + 32922^2 .

It is a super-2 number, since 2×243114403240² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243114403199 and 243114403208.

It is not an unprimeable number, because it can be changed into a prime (243114403247) 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, 14786064 + ... + 14802496.

Almost surely, 2^243114403240 is an apocalyptic number.

243114403240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243114403240 is an abundant number, since it is smaller than the sum of its proper divisors (305729265320).

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

243114403240 is a wasteful number, since it uses less digits than its factorization.

243114403240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17662 (or 17658 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 243114403240 its reverse (42304411342), we get a palindrome (285418814582).

The spelling of 243114403240 in words is "two hundred forty-three billion, one hundred fourteen million, four hundred three thousand, two hundred forty".