243310244340 has 48 divisors (see below), whose sum is σ = 685840982400. Its totient is φ = 64447274880.

The previous prime is 243310244311. The next prime is 243310244347. The reversal of 243310244340 is 43442013342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 243310244298 and 243310244307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243310244347) 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, 13599016 + ... + 13616895.

It is an arithmetic number, because the mean of its divisors is an integer number (14288353800).

Almost surely, 2^243310244340 is an apocalyptic number.

243310244340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243310244340 is an abundant number, since it is smaller than the sum of its proper divisors (442530738060).

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

243310244340 is a wasteful number, since it uses less digits than its factorization.

243310244340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27216072 (or 27216070 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 243310244340 its reverse (43442013342), we get a palindrome (286752257682).

The spelling of 243310244340 in words is "two hundred forty-three billion, three hundred ten million, two hundred forty-four thousand, three hundred forty".