1223413442440 has 64 divisors (see below), whose sum is σ = 3161889561600. Its totient is φ = 417326800128.

The previous prime is 1223413442413. The next prime is 1223413442473. The reversal of 1223413442440 is 442443143221.

It is a super-2 number, since 2×1223413442440² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223413442396 and 1223413442405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11034520 + ... + 11144839.

It is an arithmetic number, because the mean of its divisors is an integer number (49404524400).

Almost surely, 2^{1223413442440} is an apocalyptic number.

1223413442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223413442440 is an abundant number, since it is smaller than the sum of its proper divisors (1938476119160).

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

1223413442440 is a wasteful number, since it uses less digits than its factorization.

1223413442440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22179574 (or 22179570 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 1223413442440 its reverse (442443143221), we get a palindrome (1665856585661).

The spelling of 1223413442440 in words is "one trillion, two hundred twenty-three billion, four hundred thirteen million, four hundred forty-two thousand, four hundred forty".