243022223400 has 384 divisors, whose sum is σ = 846273692160. Its totient is φ = 57172608000.

The previous prime is 243022223347. The next prime is 243022223429. The reversal of 243022223400 is 4322220342.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 114040335 + ... + 114042465.

It is an arithmetic number, because the mean of its divisors is an integer number (2203837740).

Almost surely, 2^243022223400 is an apocalyptic number.

243022223400 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 243022223400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423136846080).

243022223400 is an abundant number, since it is smaller than the sum of its proper divisors (603251468760).

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

243022223400 is a wasteful number, since it uses less digits than its factorization.

243022223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 243022223400 its reverse (4322220342), we get a palindrome (247344443742).

The spelling of 243022223400 in words is "two hundred forty-three billion, twenty-two million, two hundred twenty-three thousand, four hundred".