243440002124 has 36 divisors (see below), whose sum is σ = 468938577744. Its totient is φ = 110496540000.

The previous prime is 243440002123. The next prime is 243440002139. The reversal of 243440002124 is 421200044342.

It is a happy number.

It is a super-2 number, since 2×243440002124² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243440002093 and 243440002102.

It is not an unprimeable number, because it can be changed into a prime (243440002123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19472 + ... + 698039.

It is an arithmetic number, because the mean of its divisors is an integer number (13026071604).

Almost surely, 2^243440002124 is an apocalyptic number.

It is an amenable number.

243440002124 is a deficient number, since it is larger than the sum of its proper divisors (225498575620).

243440002124 is a wasteful number, since it uses less digits than its factorization.

243440002124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718238 (or 718225 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 243440002124 its reverse (421200044342), we get a palindrome (664640046466).

The spelling of 243440002124 in words is "two hundred forty-three billion, four hundred forty million, two thousand, one hundred twenty-four".