243441023220 has 36 divisors (see below), whose sum is σ = 738437770980. Its totient is φ = 64917606144.

The previous prime is 243441023191. The next prime is 243441023251. The reversal of 243441023220 is 22320144342.

243441023220 is a `hidden beast` number, since 2 + 4 + 3 + 4 + 410 + 23 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 172107160164 + 71333863056 = 414858^2 + 267084^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 676224885 + ... + 676225244.

It is an arithmetic number, because the mean of its divisors is an integer number (20512160305).

Almost surely, 2^243441023220 is an apocalyptic number.

243441023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243441023220 is an abundant number, since it is smaller than the sum of its proper divisors (494996747760).

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

243441023220 is a wasteful number, since it uses less digits than its factorization.

243441023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352450144 (or 1352450139 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 243441023220 its reverse (22320144342), we get a palindrome (265761167562).

The spelling of 243441023220 in words is "two hundred forty-three billion, four hundred forty-one million, twenty-three thousand, two hundred twenty".