243445422000 has 640 divisors, whose sum is σ = 887237784576. Its totient is φ = 56908800000.

The previous prime is 243445421981. The next prime is 243445422001. The reversal of 243445422000 is 224544342.

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

It is not an unprimeable number, because it can be changed into a prime (243445422001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 319901620 + ... + 319902380.

Almost surely, 2^243445422000 is an apocalyptic number.

243445422000 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 243445422000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443618892288).

243445422000 is an abundant number, since it is smaller than the sum of its proper divisors (643792362576).

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

243445422000 is a wasteful number, since it uses less digits than its factorization.

243445422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 243445422000 its reverse (224544342), we get a palindrome (243669966342).

The spelling of 243445422000 in words is "two hundred forty-three billion, four hundred forty-five million, four hundred twenty-two thousand".