243400324407 has 8 divisors (see below), whose sum is σ = 328443811584. Its totient is φ = 160311860088.

The previous prime is 243400324399. The next prime is 243400324411. The reversal of 243400324407 is 704423004342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243400324407 - 2³ = 243400324399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243400324457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488755423 + ... + 488755920.

It is an arithmetic number, because the mean of its divisors is an integer number (41055476448).

Almost surely, 2^243400324407 is an apocalyptic number.

243400324407 is a deficient number, since it is larger than the sum of its proper divisors (85043487177).

243400324407 is an equidigital number, since it uses as much as digits as its factorization.

243400324407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977511429.

The product of its (nonzero) digits is 64512, while the sum is 33.

Adding to 243400324407 its reverse (704423004342), we get a palindrome (947823328749).

The spelling of 243400324407 in words is "two hundred forty-three billion, four hundred million, three hundred twenty-four thousand, four hundred seven".