243426140344 has 32 divisors (see below), whose sum is σ = 457297999200. Its totient is φ = 121480128000.

The previous prime is 243426140327. The next prime is 243426140369. The reversal of 243426140344 is 443041624342.

It is a congruent 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, 27039844 + ... + 27048844.

It is an arithmetic number, because the mean of its divisors is an integer number (14290562475).

Almost surely, 2^243426140344 is an apocalyptic number.

It is an amenable number.

243426140344 is a deficient number, since it is larger than the sum of its proper divisors (213871858856).

243426140344 is a wasteful number, since it uses less digits than its factorization.

243426140344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15103 (or 15099 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 243426140344 its reverse (443041624342), we get a palindrome (686467764686).

The spelling of 243426140344 in words is "two hundred forty-three billion, four hundred twenty-six million, one hundred forty thousand, three hundred forty-four".