1224342440444 has 24 divisors (see below), whose sum is σ = 2159333532720. Its totient is φ = 607395390336.

The previous prime is 1224342440441. The next prime is 1224342440459. The reversal of 1224342440444 is 4440442434221.

It is a super-2 number, since 2×1224342440444² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1224342440398 and 1224342440407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224342440441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237584 + ... + 1582760.

It is an arithmetic number, because the mean of its divisors is an integer number (89972230530).

Almost surely, 2^{1224342440444} is an apocalyptic number.

It is an amenable number.

1224342440444 is a deficient number, since it is larger than the sum of its proper divisors (934991092276).

1224342440444 is a wasteful number, since it uses less digits than its factorization.

1224342440444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346957 (or 1346955 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 38.

Adding to 1224342440444 its reverse (4440442434221), we get a palindrome (5664784874665).

The spelling of 1224342440444 in words is "one trillion, two hundred twenty-four billion, three hundred forty-two million, four hundred forty thousand, four hundred forty-four".