243221443432 has 32 divisors (see below), whose sum is σ = 497533402080. Its totient is φ = 110547424960.

The previous prime is 243221443429. The next prime is 243221443453. The reversal of 243221443432 is 234344122342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269498 + ... + 1448470.

It is an arithmetic number, because the mean of its divisors is an integer number (15547918815).

Almost surely, 2^243221443432 is an apocalyptic number.

243221443432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243221443432 is an abundant number, since it is smaller than the sum of its proper divisors (254311958648).

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

243221443432 is a wasteful number, since it uses less digits than its factorization.

243221443432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194433 (or 194429 counting only the distinct ones).

The product of its digits is 110592, while the sum is 34.

Adding to 243221443432 its reverse (234344122342), we get a palindrome (477565565774).

The spelling of 243221443432 in words is "two hundred forty-three billion, two hundred twenty-one million, four hundred forty-three thousand, four hundred thirty-two".