243204014240 has 48 divisors (see below), whose sum is σ = 626803077600. Its totient is φ = 88437822720.

The previous prime is 243204014231. The next prime is 243204014257. The reversal of 243204014240 is 42410402342.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69090290 + ... + 69093809.

It is an arithmetic number, because the mean of its divisors is an integer number (13058397450).

Almost surely, 2^243204014240 is an apocalyptic number.

243204014240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243204014240 is an abundant number, since it is smaller than the sum of its proper divisors (383599063360).

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

243204014240 is a wasteful number, since it uses less digits than its factorization.

243204014240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138184125 (or 138184117 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 243204014240 its reverse (42410402342), we get a palindrome (285614416582).

The spelling of 243204014240 in words is "two hundred forty-three billion, two hundred four million, fourteen thousand, two hundred forty".