243407928422400 has 624 divisors, whose sum is σ = 919975300383744. Its totient is φ = 55621736202240.

The previous prime is 243407928422381. The next prime is 243407928422429. The reversal of 243407928422400 is 4224829704342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9885376489 + ... + 9885401111.

Almost surely, 2^{243407928422400} is an apocalyptic number.

243407928422400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243407928422400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459987650191872).

243407928422400 is an abundant number, since it is smaller than the sum of its proper divisors (676567371961344).

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

243407928422400 is a wasteful number, since it uses less digits than its factorization.

243407928422400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29264 (or 29237 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 51.

The spelling of 243407928422400 in words is "two hundred forty-three trillion, four hundred seven billion, nine hundred twenty-eight million, four hundred twenty-two thousand, four hundred".