243220324040244 has 72 divisors (see below), whose sum is σ = 643577995307520. Its totient is φ = 77353124385600.

The previous prime is 243220324040219. The next prime is 243220324040347. The reversal of 243220324040244 is 442040423022342.

243220324040244 is a `hidden beast` number, since 2 + 4 + 3 + 2 + 2 + 0 + 3 + 2 + 404 + 0 + 244 = 666.

It is a super-2 number, since 2×243220324040244² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 243220324040199 and 243220324040208.

It is a congruent number.

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, 1534704979 + ... + 1534863450.

It is an arithmetic number, because the mean of its divisors is an integer number (8938583268160).

Almost surely, 2^{243220324040244} is an apocalyptic number.

It is an amenable number.

243220324040244 is an abundant number, since it is smaller than the sum of its proper divisors (400357671267276).

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

243220324040244 is a wasteful number, since it uses less digits than its factorization.

243220324040244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069568541 (or 3069568536 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 36.

Adding to 243220324040244 its reverse (442040423022342), we get a palindrome (685260747062586).

The spelling of 243220324040244 in words is "two hundred forty-three trillion, two hundred twenty billion, three hundred twenty-four million, forty thousand, two hundred forty-four".