243242023723400 has 192 divisors, whose sum is σ = 623750311800000. Its totient is φ = 87665745024000.

The previous prime is 243242023723351. The next prime is 243242023723451. The reversal of 243242023723400 is 4327320242342.

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, 14922851 + ... + 26630349.

It is an arithmetic number, because the mean of its divisors is an integer number (3248699540625).

Almost surely, 2^{243242023723400} is an apocalyptic number.

243242023723400 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 243242023723400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311875155900000).

243242023723400 is an abundant number, since it is smaller than the sum of its proper divisors (380508288076600).

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

243242023723400 is a wasteful number, since it uses less digits than its factorization.

243242023723400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11707720 (or 11707711 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 38.

Adding to 243242023723400 its reverse (4327320242342), we get a palindrome (247569343965742).

The spelling of 243242023723400 in words is "two hundred forty-three trillion, two hundred forty-two billion, twenty-three million, seven hundred twenty-three thousand, four hundred".