243404352 has 224 divisors, whose sum is σ = 759805440. Its totient is φ = 77262336.

The previous prime is 243404339. The next prime is 243404363. The reversal of 243404352 is 253404342.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5178793 + ... + 5178839.

Almost surely, 2^243404352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243404352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379902720).

243404352 is an abundant number, since it is smaller than the sum of its proper divisors (516401088).

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

243404352 is an frugal number, since it uses more digits than its factorization.

243404352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 243404352 is about 15601.4214736991. The cubic root of 243404352 is about 624.3710810565.

Adding to 243404352 its reverse (253404342), we get a palindrome (496808694).

The spelling of 243404352 in words is "two hundred forty-three million, four hundred four thousand, three hundred fifty-two".