243403432000 has 56 divisors (see below), whose sum is σ = 602788619160. Its totient is φ = 97361369600.

The previous prime is 243403431989. The next prime is 243403432043. The reversal of 243403432000 is 234304342.

It can be written as a sum of positive squares in 4 ways, for example, as 52672086016 + 190731345984 = 229504^2 + 436728^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15204715 + ... + 15220714.

It is an arithmetic number, because the mean of its divisors is an integer number (10764082485).

Almost surely, 2^243403432000 is an apocalyptic number.

243403432000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243403432000 is an abundant number, since it is smaller than the sum of its proper divisors (359385187160).

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

243403432000 is an equidigital number, since it uses as much as digits as its factorization.

243403432000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30425456 (or 30425436 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 243403432000 its reverse (234304342), we get a palindrome (243637736342).

The spelling of 243403432000 in words is "two hundred forty-three billion, four hundred three million, four hundred thirty-two thousand".