243235043400 has 96 divisors (see below), whose sum is σ = 763573449600. Its totient is φ = 64041619200.

The previous prime is 243235043377. The next prime is 243235043411. The reversal of 243235043400 is 4340532342.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2518371 + ... + 2613170.

It is an arithmetic number, because the mean of its divisors is an integer number (7953890100).

Almost surely, 2^243235043400 is an apocalyptic number.

243235043400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243235043400 is an abundant number, since it is smaller than the sum of its proper divisors (520338406200).

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

243235043400 is a wasteful number, since it uses less digits than its factorization.

243235043400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131639 (or 5131630 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 243235043400 its reverse (4340532342), we get a palindrome (247575575742).

The spelling of 243235043400 in words is "two hundred forty-three billion, two hundred thirty-five million, forty-three thousand, four hundred".