243401422000 has 240 divisors, whose sum is σ = 649491242400. Its totient is φ = 88156992000.

The previous prime is 243401421979. The next prime is 243401422001. The reversal of 243401422000 is 224104342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (243401422001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65096131 + ... + 65099869.

It is an arithmetic number, because the mean of its divisors is an integer number (2706213510).

Almost surely, 2^243401422000 is an apocalyptic number.

243401422000 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 243401422000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324745621200).

243401422000 is an abundant number, since it is smaller than the sum of its proper divisors (406089820400).

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

243401422000 is a wasteful number, since it uses less digits than its factorization.

243401422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4053 (or 4026 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 243401422000 its reverse (224104342), we get a palindrome (243625526342).

The spelling of 243401422000 in words is "two hundred forty-three billion, four hundred one million, four hundred twenty-two thousand".