1224342323440 has 40 divisors (see below), whose sum is σ = 2846649209040. Its totient is φ = 489727758336.

The previous prime is 1224342323437. The next prime is 1224342323489. The reversal of 1224342323440 is 443232434221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1224342323396 and 1224342323405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570512 + ... + 5786128.

It is an arithmetic number, because the mean of its divisors is an integer number (71166230226).

Almost surely, 2^{1224342323440} is an apocalyptic number.

1224342323440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224342323440 is an abundant number, since it is smaller than the sum of its proper divisors (1622306885600).

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

1224342323440 is a wasteful number, since it uses less digits than its factorization.

1224342323440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286609 (or 286603 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 1224342323440 its reverse (443232434221), we get a palindrome (1667574757661).

The spelling of 1224342323440 in words is "one trillion, two hundred twenty-four billion, three hundred forty-two million, three hundred twenty-three thousand, four hundred forty".